Independence from other people’s opinions

Dear Brooke and SCS Team,
Wishing you a wonderful 2020 Year and thank you very much for your endless support and help!

I would kindly ask you the following question:

I have trouble with being independent from the other people’s opinions about myself (especially from the opinion of my father. In my family, his opinion was always the only possible true. He never changes it and I was never able to believe in something different if he does not agree.) The same pattern I see now in my relations with other people.

Now I understand that some of my thoughts about myself are not even mine. I believed in some of them just because I heard that opinion about me almost every day for the last 20 years. However, I struggle with the way how to stay confident and change my thoughts, while I am constantly hearing the same things that I am not good enough, have no appropriate skills, knowledge, etc. to be who I want to be or to reach my goals. This really hurts me and I hesitate how should I cope with them.

Thank you very much in advance for your answer!