is there even anything at this point Trump can do that would ease your fears?
He piked Mike to counterbalance his own presence, to try to appeal to the establishment republicans, He piked Pence because Pence is almost the exact opposite of him.
Giving the way they interact with one another I very much doubt Trump is being influenced much by Pence.
As for who will be in his cabinet, that is not being base on policy or believes, is being based on loyalty, remember that not everyone in the republican party was good to Trump so he will likely surround himself with yes men, including that Breitbard guy.
Trump did said he was going to repeal Obama's executive orders, but that was just campaign talk, I would bet you a kidney he doesn't touch most of them, you're just assuming he'll reverse the pro-LGBT ones.