Just like you, I quit my day job in my early 30s, and have not looked back since. Have founded a dozen companies in the meantime and am currently having the best financial year of my 15 year solo-founder career.
My advice is, hang in there. If you like what you are doing persist and adapt.
My best product thus far is an API I built to support my original business plan. The original product I tried to build is long dead.
I originally started https://foodpages.ca and dinehere.us then built https://geocode.ca to provide local search functionality, then expanded worldwide with geocode.xyz and 3geonames.org, also got into collaborative fiction writing with fictionpad.com and price comparison engines with comparify.xyz & askvini.com (which I sold on flippa) and real estate aggregator sites (shitet.net and landhub.ca, landhub.us).
Currently geocode.xyz and geocoder.ca are my most profitable businesses.
Thanks for your kind reply. I might like to have some guidance for starting as a solo founder. Is it possible to ask you a few questions via Email or something? How may I contact you, provided if you are willing?
Totally worth it. I'm currently earning around four times a senior software engineer salary, and I've got plenty of free time. Overall my average earnings over the whole 15 year period have been double what I'd have been getting in a day job.
My advice is, hang in there. If you like what you are doing persist and adapt. My best product thus far is an API I built to support my original business plan. The original product I tried to build is long dead.
All the best. e.