Tips for making friends

So i have always been akward and quiet and I used to have a really really awful stutter where I like did not talk at all. Ever. But now I am in senior year of high-school and I have been really putting myself out there because I've never really had friends before but I A. Missed many years of socializing so I am not the best at it and B. Have ADHD + Autism so I always seem to always say and do the wrong thing all the time and I was wondering if anyone had any good tips on maybe in they have been in my spot how they made friends? Or really any help at all would be nice i juat really am lonely more now then ever and I really want friends especially any who are also into K-pop since everyone is know hates it dispite me loving it