You must take care of yourself, or you are no good to anyone else. Don't ignore how you feel in hopes things will improve or it will go away. You feel that way for a reason, and if you can do the work to figure out why, you will be so much better for
Ask yourself this when someone says you can't do it. What's holding you back? Exactly. Nothing but them and you, but only because you are letting them.
Dear Self. You know what they say about perfectionism...don't you? Why you don't have to be perfect, and in fact it's necessary that you don't try to be.