I'm sorry you had such a bad experience learning things. Really, that's probably the worst way to learn a language. Ideally language is acquired, not learned. It's a passive process governed by exposure, rather than repetition. http://www.utesinternationallounge.com/language-acquisition-...

But even with skills that do require solid spaced-repetition (like factoids, and probably only factoids) if you run out of joy: what even is the point. Maximize misery in life?