I have a bad habit of starting customs, but not finishing them. The main reason was I didn't really have a dedicated hobby space, and my paint projects were limited to rattle cans in the garage; not exactly the best thing for paint quality. But I have finally bought a spray booth, so now I can get these projects moving. Or find something else I "need" so I don't have to. Like a 3D printer.

That is very nice!
I have that same bad habit and I do have a dedicated workspace. Problem is, I can't stop coming up with new ideas and it's hard to stop thinking.
Wow, it even has lights! You really have no excuses now.