I totally get where you're coming from. I had some similar experiences in the past. I also had partners and, like you, I prefer to be the only cook in the kitchen.
Considering your situation, your experience, and the frustrations you shared above, my advice would be to focus on digital products, specifically info products / ebooks.
Start with what you're interested in and see what are people's frustrations and pains regarding that topic. Now, is there a way you can package information to help people solve a problem? Most of the time it's just a matter of collecting free information and publicly available research and packaging it in an organized ebook.
Then you build a website to sell your ebook and your marketing and sales pitch should be focused on the problem you're solving. Always put yourself in the prospect's shoes. If you had this problem, would you look for a solution? If so, how? Where? On Google? Ok, what exact words would you type? Etc...
I'm sure you understand the advantages of digital products over physical products: no inventory, no investment other than time (and then, mostly at the beginning), ease of scale, ease of delivery, "free" delivery, automation, etc...