I rarely feel good enough and I'm done with it

I am a happy person but the thing is that I rarely feel good enough. I have an extremely supportive and loving boyfriend and even though I trust him, when he compliments me on something I did I find it difficult to believe him. It bothers me that I don't believe in a positive feedback from a person I care about but the smallest criticism from a stranger stays in my head forever. (Even if I don't make that mistake i was criticised for anymore). What can I do to be able to take compliments and feel more worthy to myself?