Here is what I would do...

First of all STOP any handling, moving and disturbing whatsoever. Only get in the tank to remove waste, or change water, if needed.

That snake has been handled way to much right from the get go. Even if tame, doesn't mean its not really stressed.

I would make the back and sides of the tank "solid" meaning hanging a dark sheet over it, the top as well, making the tank seem more of a cave. Also have a hide in hot and cold spot, too. Stop disturbing him or trying to move him for feeding.

Let the snake relax like this for at least a week. If he has eaten before, it won't hurt him at all not to eat for a few weeks, its much worse to keep trying and keep handling all the time, the snake will never get to relax and feel safe. Don't handle until the snake is an established eater, and then go slow...

Pinkie Mice seem way to small of a food item, your snake could probably easily eat a small mouse, unless he has never eaten well before. Try at least a weanling mouse of fuzzy rat, live.

Put it in the tank and leave the room (unless its an adult rodent that can do damage, then you have to stay nearby and supervise) The snake won't eat till he feels safe. He won't feel safe if he is constantly bothered for some reason or another.

And don't worry...he will eat and it won't hurt to skip a couple of weeks. Unless he is skinny and looking "bad", then you would have to find a vet to see if there are some internal parasites, etc...

Can you post a quick pic before you put him into "isolation" ?