I've been using SRS to learn 日本語 for some time now. Prior to this, my ability to remember kanji was basically nil. I could spend tons of time writing it over and over again, and nearly immediately forget how to write it, and shortly after, forget how to read it.

I switched to using Anki, and the reading at least became quite cemented - I still struggle with writing at times, but it's a significant improvement over what it was previously.

Daily study is hugely important - if I go out and have a crazy weekend, I hate myself Monday, and my study session becomes 3 or 4 times longer than it would otherwise.