A couple things to remember if you're in the rejected camp like us:
1. YC is just a means to an end. It's cliche but getting rejected to YC should not deter your startups path. If it does, it's a bad sign.
2. My team and I were excited about the opportunity as usual but we made sure we kept our expectations realistic and didn't get our hopes up. There are too many ups and downs in a startup to let this have a big impact on you. We didn't get in last time either, but I'm thankful because we wouldn't have been ready and it would've been a wasted opportunity.
Focus on growth and executing toward your goal above all else, that's the tl;dr of the YC experience anyway. Keep fighting the good fight. If anyone wants to chat or needs encouragement, you can email me at josh@dirtjockey.com.
Edit: For those curious, we are doing a CRM and inventory management tool for heavy equipment dealers. You can check out our website here, http://dirtjockey.com and demo here: http://demo.dirtjockey.com. We just launched with a small group of customers and are almost cash flow positive already.
5th attempt. No problem, we'll keep going.