Why do I feel like this?

Something I have realized about myself lately is that I want attention from people, yet when anyone gives me even an ounce of love or kindness, I think that I'm not worthy of it. I always push people away, and then am stuck in a cycle of thinking I'm unwanted, when in reality, I don't know if anyone wants me or not because I'm too afraid of being hurt again to find out..

I know this website isn't for therapy or anything like that, but does anyone else feel this way?