Crush!!!Help!!!

I've liked a boy for a year and a half now(social anxiety) and I really want him to like me, he just doesn't get the memo, is there anything I can do to get him to like me, I can't tell him because I just don't think I'll be able to, but im done being single, and I've tried so hard to get over him but I just can't. So give me advice pleaseeeee.