I've been also in this situation,I was always saying''Why I'm alive if I can't make new friends?'' ''Why my life is boring?'' ''Why my friends always teasing me?''...Well,I can't make you more happier,but I think this proverb really helped me...
''Even How Hard and Long the winter went,the spring will always follow''
Don't give up,I know that you're always thinking about that,but take time to see what life can be helpfull to you.