If you feel you're getting your money's worth from just reading the stuff then you're fine. Though if you really do want to actually play games using them I recommend finding a group and doing so, either in person or online. This community has an LFG section attached to it if you don't know where to start.
What system did you use? First thing coming to my mind would be D20 modern since it's basically an officially published hack of 3e D&D, so the rules wouldn't be too foreign to anybody familiar with 5e, and it has actual rules specifically for car chases.
This is one of those classic movies that should be used as a reference when someone asks you to explain what D&D is. Heroes on a quest, or multiple overlapping ones in the case of Westley and Indigo, and the adventures they have along the way.
Another great example with a solid party dynamic among the main cast is Star Wars.
PF2e actually exists because of D&D 5e. 5e is a streamlined and (most people believe) improved version of 3.5, which is exactly what PF1e is under a different label. But to appeal to their rebellious hipster demographic the new PF had to be different and innovative. So you get a bunch of overly complex rules for options and the sake of just being like D&D but still totally not D&D. The result is a decent game that definitely isn't 5e because it intentionally trades off most of the streamlining that makes 5e more approachable for the sake of complexity and options.
Bring on the hunters. GeeBee has unhealthy emotional attachment issues, a roll target of 5, and a bandolier of man portable nuclear warheads. In situations requiring stealth or close combat the Davy Crockett
weighs a hundred pounds unloaded and would make a very effective bludgeoning device (as an anime girl she is of course strong enough to wield it as such). Or she could always just decide "f- it" and go out in a blaze of glory because nukes. Basically she embodies as personality traits all the ideologies of a circa 1960 Cold War superpower that would motivate them to invent a man portable nuclear weapon with a blast radius greater than it's maximum range.
Also I think my hair would get me the connections to requisition a Blackhawk.
Yandere, American (I assume this means either blonde or red white and blue), 5, named Gun Bunny. Personal defense weapon is a Carl Gustav 84mm recoilless rifle, unless the GM allows an M28 Davy Crocket (literally a nuclear bazooka).
It took me about five seconds to create this character, and now I kind of want to actually play the game.
Okay that explains her name, I guess... assuming the folks at the orphanage also called her "red one" for twelve years.
And after reaffirming her stereotypical rogueness with the backstory, I don't think she has any right to complain about the paladin suspecting her of legally questionable behavior in the last panel.
Also I can't be the only one wondering if Lady Laeral bears a striking resemblance to a certain Tiefling and has a story about being forced to give up a child for reasons that have only recently been resolved or something else like that. This kind of screams "character development arc."
Perception check fell short of noticing the do-me eyes? Or was it a low Persuasion roll to convey flirtatious intent? At a guess I would imagine Konsi has a high charisma score and clerics do get access to Persuasion as a proficiency. Then again I've had cleric characters with both of those things botch rolls that resulted in violence I was trying to avoid, so a failed flirtation isn't the worst outcome, even if it's frustrating.
Commune is a fifth level spell. It only gets answers to three yes or no questions but that does mean that a ninth level cleric is able to literally talk to their god and have the god acknowledge and respond to them. Daily. Think for a moment about how anybody else would react to meeting someone that has conversations with a deity and isn't just delusional.
Defaulting to a professional inquiry is a valid method of overcoming anxiety. Paladins are supposed to fight monsters. Aboleths are bad and tend to need disposed of. It's a perfectly legitimate question. Out of left field, perhaps, but this apparently badass adventurer is probably the most likely person she's met all day to actually have a line on some Aboleths blood.
If you feel you're getting your money's worth from just reading the stuff then you're fine. Though if you really do want to actually play games using them I recommend finding a group and doing so, either in person or online. This community has an LFG section attached to it if you don't know where to start.