New one, need some guidance.

So long story short, i have recently came accrossed edits of this light novel and found ir intresting and when i checked i was shocked that it had 2000+ chapters and when i downloaded the epub from the reddit, i saw 27000+ slides. Its alot😅, but i am seeing that people in this reddit have read this many times and also re-reading. I was wondering can u guys give me some knowledge and guidance about how should i persue this light novel. I wanna complete it too but its really big. Do you guys have insight or something you can tell or share your story. It will help. Have a wonderful day.