Utilize your skills that you have gained through your experiences. You don't have to be a full time employee! For example, you can even do freelance works on different platforms. You might not get hand full of money at the beginning but, something is better than nothing right? Another option will be to build a network while working and start consultancy services. Just find the people that needs your help. And, start helping others.

I'm not as experienced as yours (I'm 25 years of old). But, I had suffered from depression as I faced betrayals in my first job at a startup. Then, started from scratch and started focusing on freelance works. I was lucky enough to find some great clients from the globe. One of them even gifted a laptop to me that I'm using to write this comment. Eventually, with the help of my clients me and my wife even started our own startup (still self funded)! Its been almost 1.5 years and counting...

Please, don't quit. You will never know what is waiting for you! Sometimes you won't find a door of opportunity so, all you have to do is build the doors so that opportunities can come to you! I wish you all the very best.

Feel free to get in touch[1], If I can help you in any way. :)

[1] https://wasi0013.com/contact/