Guys, How do I politely reject someone without feeling bad?

Okay, I know this sounds so incrediblely stupid... but. I don't get a lot of attention. I'm average, maybe even below and don't get a lot of attention from guys. The few I have, I haven't been interested in back. I try to politely reject those people and it makes me feel bad and awkward, even to confront with over text message. I have really bad anxiety about judgement. I don't want to be a bad guy. I know what it's like on other end.

Boys how do I politely reject someone?
Guys, How do I politely reject someone without feeling bad?
Post Opinion