First, don't worry about anyone getting "sick of you". People on this site want to help and a person who posts lots of times trying to get everything right is quite appreciated around here!

People say that BPs do well with feeding routines, so establishing a routine, even if the snake isn't eating yet, is probably a good idea.

I don't remember/possibly haven't read all the details from your past threads, so I apologize if you've gone over this before.

Do you know for sure what size mouse the snake was eating previously? Some snakes apparently can get particular about the size of their food. Particularly if they are already feeling stressed or insecure, a bigger prey item may be refused.

Have you tried the crumpled newspaper trick?

I don't have lots of experience with lots of different snakes, but it does sound to me like this snake isn't feeling secure. Some people have said that certain snakes need a lot more security than others. What can you do to help him feel safer? What are you doing already?