I hate paperwork, but I have people who are rockstars with it, so they do that. I am primarily the innovator, sales and programmer. I like design and many things, but I realize when others can do a better job, faster and cheaper than I can, and I take advantage of that.
But when I was starting out, I only had myself, and I had to do _everything_. This included all the paperwork. It sounds like you primarily have a motivation issue, look into sources for helping with this. I listened to the audiobook version of Solving the Procrastination Puzzle [0], there are at least a few brilliant ideas in there that will help anyone. I am a workalohic in some ways, but I feel perpetually lazy and behind, yet run my own business and spend more time working that most. Go figure, yet I still hit procrastination walls on some topics, like paperwork or billing, etc...
The reality may be that you made a huge mistake, and just need to own up to it, and get as much money back out of this venture as you can. But if you want to own up to current and past failings and make a go of it, keep trying.
But, I have to say that the reason my business worked is because I simply wasn't going to do anything else. Period. You couldn't force a normal job into my hands, when I wasn't working for clients, I worked for myself. I have short, medium and long term plans and I stuck on a drive to do them all. If you simply don't have this, or if you try to create this drive and fail to do so, it's better to close up shop and find the thing you can do.
Having 50k in the bank is pretty damn cool, you have some skills at managing money to get that far. You may want to reassess your primary abilities and refocus to something you are actually good at. Right now, making software doesn't seem to be it. Or maybe it's the software you are focused (or not focused on, har) that you need to reevaluate. Maybe there's a project that isn't as financially viable, but you would actually finish it.
Last word of wisdom, decent software that is finished and working is worth more than perfect software left undone.
I hope you figure out your problem. I have a brother in Japan teaching English, I know there's not a ton of money in it, but he is happy and satisfied with his life. Being happy/satisfied may is perhaps more important to consider...
[0] https://www.amazon.com/Solving-Procrastination-Puzzle-Concis...
1. http://www.procrastination.ca/
2. http://newsroom.carleton.ca/2012/09/20/what-are-you-waiting-...
Also, Dr. Pychyl's book on procrastination: Solving the Procrastination Puzzle: A Concise Guide to Strategies for Change if you're interested in a read:
https://www.amazon.com/Solving-Procrastination-Puzzle-Concis...
(Just throwing up links for more info.)
https://www.amazon.com/Solving-Procrastination-Puzzle-Concis...