@cicion I am so sorry -- I have been there, and it is hard. I ran my retail business from 1997-2013, and while I was fairly successful in earning a living while also being a married mother of two, near the end of that run, things were bad, and I was burning out. I wasn't in debt, but I wasn't making enough, and closed down.
I went through a pretty dark time for two years or so, and ended up needing psychiatric medication and treatment. Then I went on to work for two other major retailers, beginning at almost minimum wage as a 45-year-old with an M.A. I was glad to be doing anything, and although I didn't like the company, I did like my fellow employees. Worked my way up to assistant manager, then was hired away as assistant manager for another retailer. At both of these retail jobs, I was not only reminded of what was great about working for myself, but also, I learned a lot as well! I managed to get back into my industry in 2018 and have been wildly successful since then, especially once the pandemic hit.
I am so thankful to be working for myself again, and I do not take for granted my good fortune (which comes as a result of a lot of hard work and 7-day workweeks.) I recognize things can easily slow down, and actually have plans for what to do (which I didn't do before) to keep things running.
My advice to you is to not beat yourself up about it, and take care of your physical and mental health while you close down. Don't see closing as a failure -- see running a business that had a lot of success as a big win. There are nice things about working for someone else, and you do not have to do anything forever. Stay positive, if you can, and take help when it's offered. (I have always been pretty bad about that, and it came to bite me in the behind.) Hang in there -- I am not one to say, "Everything happens for a reason," but rather, "Everything happens." In life there are successes and "not successes." It doesn't define you as a person, and burn out is a big problem when you own your own business. My best to you and yours.