I also have money "issues" from childhood poverty, so I get it. I think you are looking at this wrong: you are focused on finding another job that will replace your $450K salary. But you don't actually need that. All you need is to bring in enough money to close the gap in your budget.
So the first thing you do is you go home and you take a very close look at your budget and your income without a job. There will be some significant differences that you are likely not accounting for:
-- Your taxes will be much, much lower, leaving you a much higher proportion of your wife's $100K income than you are currently getting.
-- You will get at least some financial aid from colleges with an income of $100K, whereas with an income of $550K, it's all on you.
-- If you are not working, you will have much more time to do things like grocery shopping, cooking, and cleaning. These things give you the opportunity to decrease the amount of income you need to cover the budget.
-- Depending on your skills, you could take over managing the rental and doing your own repairs, possibly saving $$ on things you currently have to outsource.
Etc.
Crunch the numbers, hard. Look at the budget, figure out what you can cut if needed; run a tax estimator to figure out exactly what you'll be working with. I will bet you $20 you will find you could get by indefinitely if you never get another job again. PM me if I'm wrong (I'm not). ;-)
Once you have the security of knowing that you will be just fine even if you never work again, you have two options:
1. Ask for leave, ASAP, right now, don't wait another day. If they won't give it to you, quit. Your mental and physical health are far, far more important than anything else.
2. Play the game of "when will they fire me?" Once you realize that you don't actually need this job, or any other full-time job in this industry ever again, the stress of losing the job goes away. I mean, sure, the money is fantastic, but you don't need it; you probably also have a lot of pride and ego wrapped up into doing your job (people don't tend to work their way up to that kind of money without it), but that's something that's better addressed in therapy vs. sticking with a job that makes you miserable. OTOH, it would sure be cool to continue to get an extra $65K every quarter, right? So decide that you'll do the bare minimum at work and ignore all the internal politics and micromanagement and such. You can even make a game of it -- take bets at home over how long it will take them to get rid of you (with the loser doing dishes for a week), go open a bottle of wine on the porch every time another $65K vests and have a mini-party with your DW, knowing that you're basically putting on over on everyone. Watch "Office Space" at least quarterly as a reminder. ;-)
Obviously, option 2 may not work if even the bare minimum means too much stress, or if you can't force yourself to do the bare minimum. But if you can make that mental shift from "I need to prove my value" to "who gives a fuck if they fire me," you can cut your stress dramatically while still getting the same pay.