But if you don't have the interest to work on something (particular) any more, do you really want techniques or whatever to push through anyway?
I suppose it depends what the goal is - the question being asked suggests to me you want a successful side project (or even full time business?) no matter what it is, the tech it uses, etc. If that's the case, then I can't speak to motivation, but you need to pick a project based on identifying a niche, product market fit, etc., not experimenting with what's hot and sparking your interest this week.
If that's not right, then I think the question's wrong, and maybe you just need to come to terms with it being ok to experiment with things, prototype things; that they don't have to turn into an MVP that anyone else ever sees, you're just having fun/learning about things.
And even if it's a bit of both, you want the successful business, just only if you love the tech or idea, then you're still doing nothing wrong, because all these so far have not panned out in the loving it sense before they had a chance to pan out or not in the business success sense (so that's inconsequential).
I was about to say this. I can relate hundred percent to the modus operandi, and to be honest I just accepted that I tend to loose interest and that's fine.
Moreover, I came to analyse that what was really interesting to me was this initial dreaming and planning and obsessing phase rather than the long execution.
I tend to discover and learn what I was seeking in the early phase. After that the need is less pressing.
Accepting this I made my profession of being an architect, planner, discoverer, and not a regular maintainer of things.
Note that I also revisit often old stuff and the spark might reignite. I have completed projects in the span of years picking up after a long time.
I suppose it depends what the goal is - the question being asked suggests to me you want a successful side project (or even full time business?) no matter what it is, the tech it uses, etc. If that's the case, then I can't speak to motivation, but you need to pick a project based on identifying a niche, product market fit, etc., not experimenting with what's hot and sparking your interest this week.
If that's not right, then I think the question's wrong, and maybe you just need to come to terms with it being ok to experiment with things, prototype things; that they don't have to turn into an MVP that anyone else ever sees, you're just having fun/learning about things.
And even if it's a bit of both, you want the successful business, just only if you love the tech or idea, then you're still doing nothing wrong, because all these so far have not panned out in the loving it sense before they had a chance to pan out or not in the business success sense (so that's inconsequential).