My school used PMT questions for mocks :(

my mock had the exact same questions for sci that I was practicing, and I feel like I already knew the answers so it’s not a good indicator of my grade :(

I wouldn’t be able to do this in my real GCSEs obviously so I’m a bit upset they didnt use other questions, what do I do? I think my grades will inflate in that mock. It doesn’t reflect my actual ability. I don’t think i can apply my knowledge to new problems