HN user
I'd like to give major props to http://750words.com/
Simple enough, write 750 words a day. But what gets me going is the depth of analytics that just gets thrown in as a bonus after you finish each entry. Emotional state, preoccupations, etc. tracked through time.
You'll have an idea of it if you try and write one.
Take a break. Code for fun, not profit. Connect with your community, see who's working on what.
The excitement and passion that leads you to create something rarely sticks around when things get tough. You have to press on regardless or quit. It's difficult to press on if you can't see any progress, but its often more refreshing and exciting if you step back and take a totally new angle on things.