"Building a startup is hard work and it takes time." "I'm giving up on my entrepreneurship dreams." Take time to recover mentally and financially. You can always try again at a later time (or not), and do it in a gradual way, not all-or-nothing (take a look at the 37Signals books). You at least tried, and won't have regrets of never have attempted it. Though it is hard to see it right now, you probably have learnt a few things that hopefully you can put to use in the future. Good luck and hope things improve.