Wtf ?! haejin has been wrong one time ?! of course he should be 100% right, tell you when and how much to buy/sell and maybe also make you a coffe or deliver a pizza for free when you're watching the rallies ...
Seriously :
1st : TA is about probabilities
2nd : make trades that implie something like 10% of your balance so a loss is not a problem
3rd : make your own TA, so if someone is to blame it's yourself
4th : remember how much you learned from haejin
5th : if you follow blindly (what is not a good idea) make the sum of your win/losses, should be very positive
No offense just trying to help, haejin is always saying that he is here to learn us to fish, not to give financial advise, if you want some, just subscribe to a paying one (that can have very wrong TA also), remember that he makes analysis for free.
Anyway I wish you massive profit, I'm not trolling you :-)