Demoralized? Khatz is full of silly ideas, many that I don't completely agree with, but like 1/3rd or more of his
site is all about motivation. And for good reason, it's the number one most important thing when it comes to doing anything. And it's especially important for learning a language on your own with no one to really tell you what to do.
Anyway, regarding RTK. I can't agree with the people that say you need to do RTK by itself, alone without learning any of the language. Yeah, Heisig did it this way, but everyone learns differently.
I commend anyone who can go through RtK by itself without getting bored. I'm certainly not built like this.
In this
post I rant about some of my thoughts here, like how I don't think it's worth doing all of RTK. (And I'll reiterate some of the points here.) Like, how doing RTK Lite I found more useful and time worthy. I do suggest you do as much as you can possibly do. But if it starts to wear you out, think about changing things up a little, or even a lot.
It's also a minimal-effort to learn a new
Japanese vocab word along with each new keyword. That way your at least learning some Japanese. And you might be less confused about things later when you see similar keywords.
Most importantly, don't forget to find
fun mono-lingual things to do in the language. Find anime or drama that you wouldn't mind watching raw (or better yet, with Japanese subtitles).