I had taken a near decade hiatus from making comics (2006-2015). In late 2013 I decided that I wanted to get back in the game. For a year or so I couldn't come up with ANY ideas. All of 2014. I had wondered if my best years were behind me.
Then in April of 2015, it was like a dam had burst open. I was getting 6-8 ideas a day, everyday, and I would have to run to my notebook and capture the idea. For the whole month, it felt like my brain was electricfied (that is the best way I can describe the feeling) I felt hyper-aware. I learned to write in my notebook at night so I wouldn't have to keep turning the lights on and off when I would jump out of bed to jot down an idea. May and June of that year were still productive in terms of brainstorming, but nothing ever happened since as being super productive as April.
I started drawing again in July of 2015....and I was awful. My comics in 2005 and '06 looked much better than my stiff art of 2015. But eventually I did get better. I experiment a lot, so I have my ups and downs. Sometimes things work, but other times I fall flat in my face, in both terms of writing and drawing. But by ensuring that I experiment, I am making happy little mistakes. By failing on purpose, I will never peak.