To people who feel like "failures" of their family, how do you get over it?

For context, I have always been a failure.

I have the worst grades academically, as well as being the only one wanting to drop out.

I have never recieved an award, a medal.

I have always been below average.

Though I do not let it define who I am, it still bites me and prevents me from thinking of my future.

How do you get over it? How do you try to succeed while thinking you are lesser than the people around you?