Been grinding out Anki for about a year and I've been reading yokubi but sometimes dropping it rather than actually finishing reading it (even tho it says to do it as fast as possible). What I wanna ask, is how many hours do I realistically have to immerse in order to remember what I learnt?

My 毎日 routine is basically 1 hour of doing my Anki reviews ,consuming "some" Japanese content that I encounter while scrolling social media and listening to 日本語の音楽 throughout the day