I'm suspicious of everyone around me and it's ruining my social life
Why do you feel suspicious of everyone around you?
Because no one cares about me
If you're feeling that nobody cares about you, try to find out what about you is so unlikeable. Talk to people and communicate to see how they actually feel about you rather than how you think they feel.
I am afraid to talk to people, it might be hurtful.
If you don't talk with them, you will never learn the truth about how they feel about you. It is worth finding out!