Pretty much this exact same thing happened to me. I can tell you what I did...I waited to do anything different than I already was doing or planned to do. I lasted just over a year maintaining the status quo. Granted, I was already having a very hard time at work due to very long hours, no life outside of work, no time with my kids, unreasonable expectations at work...blah blah blah...During that last year at my job, I upped all of my contributions to my various retirement accounts and I opened a brokerage account so I could have the best investments possible. After about a year of suffering at work, I looked at my spreadsheet and said you know what, I've had enough money THIS WHOLE TIME to live off of, what in the ever loving HELL am I doing sitting here miserable and I QUIT! It was fine, everything was fine. I thought it would be so scary to have no job, but it really wasn't. I had time, I did a lot of things, some trips, some staying home with my kids, crafts, home projects, it was nice and I liked it. I also had feelings...like my parents worked all their lives and now they are gone and I am benefiting from their death. It took some time to work out that just because I ended up with their money, doesn't mean that I was the cause of their death...they were very sick, it was not my fault. Even though I know that intellectually, sometimes I feel like a complete A-hole for enjoying my life now. It is strange to have "enough" because I was used to living like a single mom who had to count every penny (even though I was a super saver) but now I realize I don't really care about money...I still watch where my dollars go, but now, I don't have to worry when the dishwasher needs replaced or I need a new roof. The money brings me peace of mind and it turns out peace of mind is one of the things I truly value.
As it turns out, I decided to start working again recently (from home) doing a completely different job. I don't really need to, but with the pandemic still present, I thought well, at least during the winter, I can work since I HATE to be out in the cold and travel really is not happening now. Will I keep the job? I don't know, maybe I'll stay for a while, the benefits are GREAT, or maybe I'll get tired of it and do something else...knowing I have enough money means I can decide that whenever I feel like it and I like it that way!
Good luck to you and figuring out your journey...honestly, I don't think you can go wrong whatever you decide.