Electronics. I'm a programmer by profession, but more and more I want to better understand the lowest level parts of things. Ben Eaters' videos have been a huge source on better understanding, but I'm desperately novice with it.
Before I was a psychiatric nurse I sat a lot of 1:1 suicide watch, but also a lot with people who were very sick and had a lot of tubes in various preexisting and created orifices. All of those tubes can be very uncomfortable, and even if the person logically knows they will recover and need the tubes to do that, they have to be constantly reminded to leave them alone. LOTS of people rip out their own urine catheters and even breathing tubes, and the anchor bulbs can make a very bloody mess on their way out.
When communicating with such people I often wished we both knew sign language fully, but I did know some basics I would teach to patients over the course of a shift. I highly recommend everyone knows
water/drink
toilet (PLUS piss/shit since they might help you differently for either one)
pain/hurt
food/eat
vomit/puke
These'll take you thirty minutes to learn today and if you're strung up in an ICU someday it might make hell an inch less hellish. Communication boards where you point to the letter can help a whole lot, but when you gotta shit you gotta shit!
My kid is just under a year, and has a few spoken words like ball, momma, book, but he can actually communicate intention with sign language. When he looks you dead in the eye and gives the milk sign, its obvious what he wants. He knows all done, more, food, drink, milk, dog, flower, bird, and maybe a few more, but he uses all done, more, milk, and drink the most. It's really crazy how much faster he picked up signing.
That said, we're not good at sign language at all, just learned it for the baby specifically. Highly recommend.
I've wanted to know sign language just to make it easier to communicate in loud spaces or with someone on the other side of the room. Your motivations are even better though.
If you decide to give it a go, I'd recommend starting either with Typescript or with Kotlin. They're both very easy to learn. Kotlin is more powerful and the compiler error messages might be more helpful (I'm not too sure) but it has to deal with some leftover Java boilerplate in exchange.
C# may also be worth considering but I have never used that at all.
In my opinion, Python sounds better to start programming because it is widely used, there are thousands of tutorials for everything (from creating a calculator to an AI). It is a simple but powerful language that even children can start to learn in middle school.
For me, it's mostly that i was bad at languages in school. I don't know what it feels like to make progress with a foreign language. I feel like this is an anxiety which prevents me from trying for fear of failing.
It's easier but more laborious than it looks like. Think on how you learned your first language - you were considerably less smart than you are now, but if you've spent most of your time interacting with it.
A few major hints:
Better is enemy of good. "Grammar of brokenness even convey meaning - when person has want for meaning".
Use it actively (writing, speaking) and passively (hearing, reading) at the same time.
Pets are specially good to train your language with, as you know that they won't judge you for your mistakes.
If you're playing scrabbles and words from the "wrong" language keep popping up, you know that you're doing it right.
How to actually play an instrument. I started to get really good at the glockenspiel a while ago, by then Covid happened and I had to stop. I still do choir stuff at school, but an instrument would also be cool.
I got the instrument from school, so I had to return it. At the time, I didn't realize how important and fun doing music is (plus I got sucked into Reddit at the exact same time). I still plan on doing some music either at school or outside school soon.
It's kind of sad (for me) that I never have picked up the keys, considering I've been making music for 20+ years. I can play the guitar and bass, and I know enough music theory. I know where the notes, chords, and scales lay on the keyboard, but anything else than simple melodies or chords just confuses me. My hands don't just work independently that way.
One exercise that I know people who've had success with is to be focusing on simpler scales, which will all have slightly different fingerings for both hands. Just the regular primarily white-key scales.
E.g. C major goes 12312345 for the right hand, and 54321321 for the left hand.
Then once that's doable at some speed, moving onto the tricker simple scales. And then going into contrary motion (where the right hand goes up and the left hand down). I've found that helps people get more used to their hands working independently. Especially because it provides more structure, and just one thing (different fingering) to focus on, rather than adding in differences in tempo etc.
It's easy. At the end of the day it boils down to "ferment it, boil it, condense the vapour". I have some indirect experience with this due to my grandparents' graspa (wine pomace spirit) production and an incomplete Chemistry grad.
The main skills and knowledge that you need are only 1) precise heating control and 2) how to correctly identify distillation fractions by the temperature. In special you need to distinguish the head from the body of the distillation, since the head will have some nasty stuff like methanol and is better discarded.
For the fermentation part, I recommend that you try brewing kwas/kvass at least once, as you'll get experience with brewing yeast. (It's the same species as bakery yeast, but usually selected towards higher alcoholic tolerance, you're going to need it.) But past that it shouldn't be too different from what you already know from kombucha.
How to develop games. I bought some courses online that lead you through building your first few games, but I need the time do go through them.
I'm a content creator for a living, so right now I'm trying to grind and schedule out a months worth of uploads so I can have the free time to get started. I would love to learn how to make my own video games, and with tools like Unreal Engine and Unity it seems easier than ever before.
I really really want to learn (Standard) Arabic, but I've never really gotten around to it yet because language-wise there's always been another language which is more practical at the time for me to learn (currently Dutch).
I have been slowly learning to speak Mandarin. I haven't been able to give it the time it needs to get to my goal of being able to have a basic conversation.
One of my goals is to travel around rural China but I doubt I will be able to do that without basic Chinese.
Ever since I was a kid, I've wanted to learn how to wheelie on a bicycle, but I was a wimp as a kid and never got around to it as an adult, despite cycling being my main form of transportation.
Heck, I've learned to ride a unicycle and I still can't wheelie, lol