A little while back I wrote a post about how I made my decision. It was intended to help others who are contemplating resetting but not sure. Maybe it will help: After a long absence, I reset (to level 7), and I’m glad I did.
After resetting, I soon came across a thread about regaining/retaining the joy of learning Japanese, by taking the time necessary, and not rushing things too much. I really like the ‘philosophy’ of it: 
Let’s Durtle the Scenic Route 