I'd like to offer my help, but I'll need you to answer some questions for me.
To begin, it sounds like you don't have enough respect for who you are as a person. Let me know if I understand you correctly in that regard.
You said that you don't trust yourself. Why don't you trust yourself? What mistakes or wrongs are you afraid of doing? Give me some specific examples please.
I'll start with those questions. I'll have more to ask you later, but that's what I have to ask you for now. I look forward to helping you.