Been at the same company and same project for almost ten years. Completely burnt out on code for enterprise crud web apps. I just lost all interest. Spent a few years deep diving into testing and ops, but even that now I can only see the obvious best practices while the only challenge left is begging for management buy in. I still code for myself, tons of personal projects, but for work I only want to manage.
After being passed over for promotion I was basically promised, I started looking around and realized I have tons of options, recruiters love me. Did a few half-hearted interviews, actually declined a few after meeting the leadership. Realized suddenly I could setup a better situation than just jumping jobs.
One frustrating year later: Refinanced all my debt, saved a bunch of money for extended expenses and I can't wait to give notice.
"No I don't have another job. I'm doing thirty days of already booked and paid for travel with friends, then I'm going to come home and do NOTHING for a while, then finish my novel. Oh and I also released an app recently, check it out."