You may already be doing this, but keep a record of all the different ideas you have been coming up with. Do it in a text file or a Moleskin. Then challenge yourself to revisit them after a week. See what you can prune and improve upon. Spend time to polish it. Don't abandon it too early.

I get excited about the ideas that I keep coming back to and keep building off of. If you can stay optimistic about an idea for over a month, then you may be on to something.