You are far too young to decide that you ARE anything...particularly anything negative.
You may, quite legitimately, FEEL that you ARE...but you haven't seen anything yet!
Tell me that you are lonely at age 50, or 75, and I'll believe you...but at 22 you are just stuck in a rut.
The number one phobia in the world is speaking in public.
You are just thinking of single individuals as the 'public'. Probably because you are going at it the hard way.
You have your reasons for not sticking with your childhood friends and schoolmates and family...and I don't criticize that. Nor do I criticize going online, that's just a soother for your feelings of isolation.
So, give yourself a break...do EFT. Read Roger J. Callahan. (His books are available second-hand.) You can break this in five minutes!
Even do the tapping without all the 'statements'. It works!
(Saw a great film on this, on You-Tube.)
Go to an acupuncturist, or another type of alternative therapist. They know the connections between the body and feelings.
Or do it from a book.
You deserve love and happiness, my friend.
One tiny step, and you are there.