What do you have to do is ask yourself, if you are acting out of fear.
Fear is everywhere. You are taking a faster tempo than you should, because you are afraid you are not going to have the courage to finish the piece slowly. You are playing with the wrong fingering because you are afraid of the feeling of being stuck when figuring out the right fingering. You are hitting the pedals and the keys with too much force because you are afraid of letting go and losing control of the piece. You are making mistakes because you are afraid of what would happen if you froze on the downbeat until you are absolutely sure of what's coming up next in this measure.
Have a clear mind and know you are doing the right thing.
No fear. Just practice.