Sometimes when I get feedback that is not that pleasant to hear I might make the mistake to believe that what the other one is telling me is that I am no good. Then I might feel ashamed or feel worthless.
But usually the other person both likes me and thinks that in general I am a great college/partner/employee/friend or manager. The giver of the feedback just wants to help me to grow in a specific area or stop doing something that the giver is sensitive about.
So trust yourself – you are valuable as you are – and at the same time there will always be room for some improvements.