I got told shit like “you’re getting a free vacation” and “how many opportunities like this are you going to get” and “we tried our best to accommodate you.”
"Yes, and it must really not be our thing if we are saying no to all of that."
Sometimes you need to pick a position and dig in your heels. Even when they start pushing and you start doubting yourself you can remember that you already made your choice...but not so easy when something is just suddenly thrown at you and you don't get an opportunity to think on it first.
A lot of the experiences you described sound a lot like stuff I deal with. Have you ever been tested for autism?