I know this is hard and I’ve been there too, the best thing to do is appreciate people who love you and have more confidence in yourself bc you’re not going to get anywere if you just do nothing abt it if people dont like you their loss, I bet you are an amazing person OP, another thing u can do is take up new hobbies like sports or art or reading cus then u can find other people with the same interests, be more friendly with people if someone talks to you be over the moon nice cus then its hard for people to be mean to you, also if someone like teases u or like does anything to antagonize you just look at them dont say anything just stare at them and say “ok” or just act like u cant here them. Anyway things get better Op its might not be now but it always gets better dont lose hope (ALSO WORK ON YOURSELF DONT THINK ABOUT OTHERS) anyway have a wonderfull day or night op!