HN user
You said that you do not necessarily have faith in the idea or people. That says it all. There is no commitment from your end and it seems that you really don't care. So, don't just jump in for the heck of it, or just for the sake of leaving a 9-5 job. If the founder himself is not committed enough, this startup would go nowhere, no matter how much funding you get...
Yeah, certainly this is a troll post. I have been analyzing certain posts on various sites ever since I read that article by Paul. This one certainly doesn't have any base or any analytical data to question Y Combinator startups. This guy surely looks forward to pull unnecessary attention to his post.
Hey, just relax and take a break for a week. Visit your favorite vacation spot and meditate for an hour everyday! This will grant mental strength and will improve your concentration. Look for a place where you can go for a swim and enjoy good food. You need to sleep well and keep yourself physically active. Doing this, I am sure you'll return back to normalcy, and then you can analyze your failure with an open mind and a positive attitude.