Dude who is gonna leak scrims now? Fuckin hell
alright i see. i would recommend spending a few minutes looking through some guides like this one. the most popular timeline for learning japanese is kana -> (grammar guide) -> anki grind -> immersion -> output. people do recommend grammar guides, but honestly i only picked up the particles and learned the rest from novels cause i cba to read through a whole guide.
anki is a flashcard app to help you learn memorize kanji. don't avoid it, kanji gets way easier once you're more familiar with it. yomitan is a popup dictionary which will let you reference jp/en definitions of words you find in subtitles, novels or games using 1 key so it is very convenient. if you want to read novels on phone (i prefer) the setup is a little different but still relatively easy.
if you really want to read mushoku tensei or re:zero it will be really hard for you right now since you don't know any of the words and you'll be searching up every single word. but you can still try and if you still find it fun that is amazing. though for other people, they may find it boring and it's recommended to start with easier novels than the ones they want to read. trust me though, it'll be super satisfying realizing you can understand the sentences you wanted to be able to read.