Oh man, I feel for you. I know exactly where you are at and I know how hard it is. The thing that gets you is the emotions. If you are getting euphoria on every rally and shitting yourself on every sell-off you are watching it too closely and you have too much at stake.
I understand you've just quit your job and are going to do it full time but it sounds like you've jumped in the deep end. Good luck man and go easy on yourself.
PS - I haven't figured out if Haejin is a quack either but one thing I know for sure - he is a Technical Analyst that ignores Fundamentals. It can work but big risk doing that. Get your Fundamentals right first and then use Technical Analysis to time your entries and exits.