If you crack your bleeder that caliper piston can be retracted as far as possible. I have seen some cheap EBAY brake pads so thick that they barely fit.
Most likely your caliper slide bolts are seized, they need to slide so the new pads can fit over the rotor. Even if you don't know what I mean, take a look at the mounting points and you will find 2 points that need to slide and can be screwing this up for you.
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country