I have the exact complete opposite problem. I start 104623151 projects and rarely finish them, mainly when I encounter a problem that I can’t understand.. I just get demotivated and put it on the back burner.
Well I have a million and one things I’d love to at least get started, if that feels the same, lol. I just never do because I’m too stuck on one project. It’s a problem, sigh. ;)