Y000 screws too tight to remove

Trying to replace the screen on my iPhone 8. I’m at the part where you have to remove the large metal shield/backing plate attached to the back of the screen. This needs to be removed and put on the new screen assembly. It also needs to be removed to get access to the home button.

I’ve managed to remove three of the Y000 screws securing it. But none of the others even look like loosening. They’re too tight. It could potentially be the cheap driver I am using. It’s just one of the ones that comes with replacement screen. But I had no issue with the first three screws. So I’m not sure that’s the reason.

I’m worried that even if I spend the money on a decent driver, it still won’t help if the screws are too tight.

I’ve even considered worse case scenario of buying a new home button and backing shield. But I can’t find the backing shield for sale ANYWHERE.

Anyone have any advice. Thanks in advance.