Its a cliche, but its true. You can't fail until you've tried.
I started a project a while ago on the side, I was about 90% through until I got burned out from work (and trying to work on the side) and lost steam for both work, and my side project. I've since regained at least most of my energy. After I got better though I didn't pick up my side project, I had forgone a conclusion that it was a failure. Yesterday I opened the old project back open, and it hit me. How is it a failure if I never even released it.
So I went through the project, and made a list of things that I need to do/fix. Than I made some estimates, and put together a timeline. The new schedule is less aggressive, I should have breathing room for work and my home life. So by March 25th I should be done with my MVP.
Kudos to you for working through the low point and I wish you success and, maybe more importantly, that you persevere and finish your project. Even if it fails, you'll feel better about it, and it will give you confidence in your abilities so you can go out and do it again.