I have the reverse problem

Start millions of dev projects and never finish them 

 Yes life happens 

 Once I figure out that a problem is solvable and exactly how, going ahead and actually solving it feels like a chore. Its the most important part tbh, but also the hardest one to convince yourself to follow through with.  

 Nope have plenty of abandoned projects. 

 Yeah man! I still haven't been able to buy  all available Bitcoin on the market 😢 I would really like to finish that project... 

 Yes me t… 

 I find myself thinking of unfinished problems before I go to sleep 

 Yes, it feels the same as quitting 🙁 

 it's my daily routine 😭😭 

 Yes, same with failure. 

 I was sucker for doing everything perfectly. Take repainting the bedroom: even twisting round to paint *inside* the fitted wardrobe, above the door where it would never be seen. My method now? Don’t do perfect jobs, but I promise myself that if it still worries me in a month’s time, I’ll come back to it.

Park those jobs with a promise to yourself to revisit in xx months. 

 Yes.

Stuff for myself I can start & abandon pretty easily.

If I'm working for someone it feels different. I want to hand them something completed otherwise it feels like a waste. Is that some sort of need to be validated by them?

I also can't turn off a movie once I'm an hour or so in. It doesn't matter how bad it is, I need that feeling of resolution.  

 I think that's normal. Not trying it would be the mistake. Some things that generate enough motivation continue to live on. 

 I do with reading books. 

 Cutting a loser saves precious time 

 Rule: Whatever you do, make sure you upgrade.  

 There is no need to finish something but if the chapter is not closed properly, that is pain