How can I transform my feeling of unworthiness?

What you are experiencing is quite normal every human being that ever walked on this earth felt at some point in their life not good enough. This is part of the duality you are living in. The ego is always looking to proof itself, compare itself, and validate itself. As this is the only way to keep it alive. Therefore don´t seek to compare yourself just explore in every moment the possibility of what it is like to Be. Human beings have set up this system of validation so they can find validation for themselves, but the only true value doesn´t come from the outside it has to come from within. Only when you find validation from the inside will the outside start to validate you as who you are.

This is part of the duality where there is light has to be darkness, where there is up has to be down, and where there is cold has to be hot. Only then can you truly experience yourself as you are, by being that which you are not. So therefore do not curse the ones that are different to yourself or the ones that attack you as they only do that because they are looking for the outside validation they cannot find within themselves.

Nobody can ever hurt you unless you allow them to. Do not give value to whatever anybody says about you that is hurtful instead look within to find the strength and validation that you are just beautiful the way you are, perfect, just as you are. And remember in your being you too serve as a valuable mirror in this world for other people and it is their interpretation of what they see in you through their own filters that it is what makes it so.