My best friend of 9 years committed suicide during covid in 2020 and I just can’t bring myself to commit to my current friendships anymore. I kind of self isolated for about 2 years being high on marijuana for most of my free time. I finally cut myself out of it a few months back but idk how to feel normal again. I used to be extroverted but now I can’t talk to my friends without feeling anxiety. I’m basically socially inept at this point and have trouble feeling comfortable around people in general. How can I overcome this and be a confident person again?