Trying to teach myself Japanese. I'm using YesJapan textbooks mainly. So far I've learned hiragana and katakana, no kanji as of yet. Just getting into conjugating verbs. I think the most difficult thing is trying to make your brain quickly switch from one set of symbols to another, reading things is still very slow going. In comparison, French, Italian, and even Russian were a breeze because at least the "comprehending the sounds on the page" wasn't an issue. I know i just have to keep plugging away at it day by day so that that instant reading comprehension comes normally, instead of having to squint and sound out each word in my head.
If it's any consolation, it's a slow process mastering kanji even for natives. They pick it up a few hundred at a time every school year like we do as non-natives because you need a few thousand to do comfortably in that society, but they still come away from the process pretty traumatized and happy to not go through with it ever again once it's all over. So long is the process for them that they're actually learning up until the last year of high school. At that point, it's probably debatable what's new material versus stuff that they just managed to pick up on their own from living with Japanese all their lives, but it's definitely a journey to master them no matter who you are.
I will say as somebody fluent in Japanese that there does come a time when things start clicking in your brain after a while, when all that kanji stops being indecipherable scribbles and become individual symbols that all hold meaning and significance. And as long as you keep at it, that doesn't turn off. Eventually, after you reach that point, you'll get to be comfortable enough around them that you'll be able to learn new kanji and vocabulary you encounter just by context, much like how we do it in English with things like prefixes and suffixes. It's really gratifying to reach that point and that's when language learning starts to really become fun, at least in my book. With enough practice, you could very well end up learning Japanese... in Japanese, which is how it was for me the last few years of my formal studying.
Anyway, I offer this to every Japanese learner on here, but if you've ever got language questions, don't be afraid to hit me up. I don't have experience with the textbooks you're using, but chances are I've otherwise gone through a lot of the same ups and downs, so I'm happy to give advice to people going through the motions if they need it. :)