I feel very lonely as i've only a few good friends. i am an introvert and antisocial. people don't seem to like me much. what should i do?

Take some risks: Think about trying to exercise, especially with a group. Simple walking groups will get you out and around folks that probably have suffered similar problems.

Rewrite Ur Story!: U're aware that ur lonely & saying it out loud! sounds like u don't want 2feel lonely like this much longer...That u want 2 do something about this (!) & have more relationships. If u've avoided social situations b/c u've found them uncomfortable, u'll have missed out on years of relationship skill-building! but it's not 2late 2turn this around! consider getting expert help from psychologist!

Learn new skills: The Dale Carnegie books ("How to Win Friends and Influence People") are still very helpful; they are utterly realistic and helped reshape how people relate to each other. Talk about the other person's interests. Relationships are more important than being right. Figure out what you can really admire about the other person and let them know, subtly, that you know. "What can I do for you?"