I don't expect any President to keep every campaign promise they make that's just not realistic.
You're right, but when they are on the campaign trail, I DO expect their promises to be somewhat plausible.
Most of the things that Trump promised during the campaign are things that he needs Congress to help him out with, and even I was smart enough to see that, even if the Trump supporters didn't.
And, considering that Trump has a GOP majority in both the House and the Senate, he should be able to get things done. Obama got the ACA through in the first year with a majority in both, but Trump can't even get his party to unite behind him. If he could have, they would already be repealing the ACA and replacing it with something else, but he can't so they haven't.