Accountability has to come internally, which will come through discipline. An external accountability force will only be short lived because once the novelty wears off, then you'll start making excuses and it will fail at that point.

I would suggest you do some internal reflection and very honest introspection to find the root cause of your dissatisfaction - are you not doing your projects because some other vice is getting in the way? Or maybe the answer is you just need rest and theres only so many hours in the day.