HN user
Kudos on your startup. This is a lesson that business need not sound glamorous, it's all about finding someone to pay for it. With scale, it looks like you can make it work and keep the prices reasonable. Do ignore the negative comments and good luck!
Love it. I see that the UI and design is well thought through. Interesting pricing model too. Client gets to change their designs when they want and you end up getting more in the long run.
1. As someone said, do something that is out of your current routine to reset your system.(Go for a run, Stand in line at the DMV or post office, etc).
2. Find an actionable & useful project that you've to code/build at least for an hr where you see tangible progress. Allow that progress to motivate you so that you start spending more time on that.