This is me. After I hit ~70 domains, I realized I needed to stop. Now, I have since pared that down considerably, and instead add all of the domains I like to a "wishlist" so I can come back to them (I never do).

Then for my project ideas, I find writing them out to really be what scatches most of the itch for me. I get to think through the problem, think about how I could implement it, maybe even do a little exploring of tech I could use to solve the problem.

For the vast majority of the ideas I don't circle back. For some ideas I will come back a few times and iterate on the plans and designs, but still never build it. And even fewer I actually build. Its all of the fun, without feeling like I can never finish a project. Instead I feel like I can't start them.

Do you just start to code once you have an idea, or do you carry out a market analysis?