My mom was 19 when I was born, and my real dad gave up his rights and left. He had a lot going on with him, his mom was drinking heavily and he just lost his dad. I was 12 when my parents told me I was adopted. And I'm 17 now, me and my bio dad have a good relationship, I see him every once in a while and I've told myself over and over that it's not his fault he left, that we have a good relationship now and thats all that matters. And over and over again I keep getting these thoughts like, I'm not good enough. I was a bad kid, there was something wrong with me and thats why he didnt want me. I'm trying so hard not to blame him but especially hard not to blame myself for him leaving. I can't talk to him about it, and I'm trying very hard to forgive him and to let it go and to tell myself it wasn't me. But I just cant get rid of these thoughts. any advice?