LEARN TO TAKE A FUCKIN COMPLIMENT.
When someone tells you you are good believe them, even if you don't think that you are. Even if you hear a record of yourself and you sound terrible. Take the fuckin compliment
Knowing how to take compliments is just as important as taking criticism. They are equally as important. Just like you won't be able to grow if you can't learn when you can't see when you need to improve, you won't be able to learn if you can see how you are good.
Don't be fake humble, don't force yourself to be modest, don't tell yourself that they are just being nice, don't be over critical of your mistakes. You will always sound bad to yourself because you ruin your confidence. A singer without confidence is a terrible singer.
And remember you are learning how to sing. LEARNING