For example, from what I am understanding, you position the time spent into a product as waste if it doesn't generate revenue and are finding people who can ditch the idea if it doesn't generate revenue.
You are better off also finding things that you want to build which you are happy building because I feel like more than anything, its hard to be spotted when you are small and to be trusted with.
Imagine I was the telegram (subscription?) user and I trusted that you will continue it but it turns out that it wasn't profitable so you closed it.
Say, I was invested into your product and was paying you what I thought was right but then you closed because it wasn't enough (and that's okay too!) but the next time I will try to learn to not use products which make small money and hey this becomes a vicious cycle because everyone starts out small!
I also wish to know how you lost 2200 dollars because it seems that you did end up making profit and only lost when you invested 800 dollars, I am unable to understand that part, so please do clarify.
Another point but if you are great at coding, I would suggest hackathons to get service credits which you can then use for side-projects without burning money or partnering up with someone. I do feel like it might be worthwhile of your time as well
Hope this helps, My point is mainly to do something which you can be proud of yourself in it of itself and can be passionate about because I have seen multiple businesses which don't work until they do.
Maybe Sunk cost bias and Survivorship bias and that's fair. In that case, I actually recommend carlos's advice too. Both advice are great (in my humble opinion)