I love your candidness in your post. I think many hackers will immediately relate to the things you're feeling, myself included.

A note on co-founders, partners and others: I think a lot of times a second pair of eyes can really help, someone you can bounce ideas off of, etc. Sometimes all it takes is a fresh perspective on your problem to really get past the hump, and that's where a co-founder can really shine. Keep that in mind as you charge on, best of luck.