Hey, assalamu alaikum!
So, first of all, I'm glad you're reading my book; I really appreciate it :) I read the comment you posted, as well. I'm really glad you're eagerly looking forward to the next update but you need to understand that 1) writing a book isn't that easy (the chapter you take 20 minutes to read, takes about 3 hours to write), and 2) I'm a university student, which means I do have other responsibilities like studying and working. I'm also a human who needs some relaxing downtime and decent sleep.
I know some people update regularly; some of them pre-write their chapters (I don't), some of them have a lot of free time (I don't), some of them update with frequent but short chapters (I don't). I prefer to read books that are already completed just because I don't like waiting for updates. My updates have no schedule, though, so I'm sorry of that disappoints you. Anyway. I hope you understand.