I am not even a truecel, and therapy never did anything for me; I tried going to 3 different psychologists, and each of them was as useless as the others.

They will always say the same things: Try meditation, try breathing deeply to control your anxiety, try talking about it to your friends, try doing exercise.

In my specific case, I just cannot relate to other people, and I just cannot "want" to make friends; I don't feel the need to. Also, I literally have no personality, and I act more like a mirror according to whoever talks to me.

I don't advocate violence though. If your mind does work fine and are good looking, then for all means enjoy your life. Humans' purpose in life is to be happy.