I think it's lovely that you're making an effort in these ways. you are using your position to help people and care for animals and the planet, and do the right thing. that's good. Don't feel bad about having a good childhood. It sounds like you recognise that some people were worse of and would maybe try to help them, which is all you can do. No need to feel depressed about it, and i'm sorry that it's taken that turn. I hope you can feel better somehow, soon.