Every great entrepreneur from Steve Jobs to Mark Zuckerberg went through The Struggle and struggle they did, so you are not alone. But that does not mean that you will make it. You may not make it. That is why it is The Struggle.
The Struggle is where greatness comes from.
From Ben Horowitz’s post on “The Struggle” http://techcrunch.com/2012/06/14/the-struggle/