I've put in 80-100 hour weeks educating myself and and trying and failing and trying and failing some more. Today I finished building out my own cloud management platform and PaaS on top of that.
It's been rough, and the thought of quitting and taking a simpler approach crossed my mind more than once. But the feeling I got watching everything come up successfully today made every headache, late night and missed gym session worth it.
If there's something you want, set your sights on whatever that is and pour every ounce of heart and soul you have into it, you won't regret it!