ShiroKuro Don't feel stupid - many humans generally find it much easier to give advice than take it.
I'll admit I don't always listen to long pieces in their entirety from start to finish, especially if they're not to my musical taste. In that case I listen to the beginning, the middle and the end, which gives me a flavour of the piece. So, if you have played the first minute, the fourth minute and the seventh minute well, you needn't worry about me spotting any mistakes in the remaining sections! 😁