You've done really well, so congrats on your success.
My advice is that you work through some of the issues that you have been struggling with rather than ignoring them and moving (in this case physically) to a different place. I'd be worried that it sounds like a form of escape. I don't blame you for it - most in your situation would probably do it. I don't see any issue with you moving generally, but I just would want to make sure that you're doing it for the right reasons, not to escape.
Beyond that, you've put yourself in a great position financially to have a lot of options. You could sell in WA and buy in the new city, you could keep the old in WA and be a long-distance landlord (challenging but doable with the right protections involved), you could stay where you are and continue until you are in an even better position financially. None of those would be bad moves.
With respect to the cash, you've got to invest that (at least everything over your cash emergency fund - like 6 months of expenses or whatever you're comfortable with). Put it in VTI or VOO or another low-cost, well diversified index fund (I prefer ETFs to mutual funds) at a minimum, which has historically averaged a 10-12% annual return (which is nothing to sneeze at - especially over a long period of time). If you want to put a portion of it in single stocks, be smart about it and put a small percentage of your investments in a few stocks (spread it out in other words) - like no more than 20-25% in single stocks (with no more than [5%] in any one stock) and the rest in VTI/VOO.
Best of luck, and again, congrats for putting yourself in a great financial position.
