Hm, I really connected to this post. The family I grew up in shared the mutual belief that I wasn't worth their time. Did I grow past that? I did eventually! A while ago, I took it upon myself to become happy and independent. Although I felt as if everyone scoffed at me initially, I now have my own life and am somehow on good terms with that same family. I got lucky with the family part, but learning to love myself was the hardest part. Everyone who rebuilds themselves from a difficult child are basically chiseling on their hands and knees the stonework foundation of their life, cobbled poorly by insensitive parents (I might have heard this somewhere, but I forget where).

Good luck on your journey. It will take a while, and it won't happen overnight, but it happens in slow steps. Even when you think you're taking a step backwards, you've actually taken a step forward, albeit hard. There will be times you might doubt yourself or almost take harsh words to heart, but never forget you're your #1 leader. Sorry if these metaphors sound cheesy. They best explain how I feel, and I really want you to do well. I think taking care of yourself, such as eating well, might be an easy way of feeling better, to start off with. I've been there myself. Continuing work with your therapist sounds great, and allow people into your life who make you feel positive while keeping out the negative ones. If they help, there are some good self-help books on self-esteem. Writing out what people have said about you and then writing out logical explanations for their actions helps me sometimes, such as thinking, "Well, maybe he wasn't making fun of me, but just was trying to be friendly but awkwardly failed, especially since no one else was in ear shot."