I try to spread this tip everywhere i can: If you ever find that you've watched one of those videos that fucks up the recommendations, go to your watch history and delete the video. It really works.
A big unattainable thing it can do is enlarge eyes on certain faces. It's worth keeping in mind. I also actually prefer how my face looks after FFS and many years HRT vs what Faceapp came up with. So yeah, YMMV.