[John23832]

> TL;DR I am probably burned out, looking for validation from anonymous people online to make a serious life decision, what could possibly go wrong.

This is it, on top of it being a crappy company.

Don't worry. Most of us that have been around long enough have been there. Just dig the ditches while trying to find a new job. While the job market is tighter, there are still plenty of senior level jobs out there. From the conversations that I've had with recruiters, there's really a glut of juniors, while there's a lot of space for seniors.

Don't stay and "work your way into a senior". That's a bait ands switch as old as time. They're trying to get senior level talent at mid level cost. Do the work of an average mid level if you're paid as a mid level.

In the mean while (while looking for other positions), find something that mentally stimulates you.