So I started reading the novel after the last chapter and finished it like a week ago and I have to say reading the novel with the details is many times better and I wish all the details were conveyed in the comic too. Although, I am happy that we get a visual representation through the comic but I'd definitely recommend reading the novel..
You can read it here: https://novelplanet.com/Novel/I-Alone-Level-Up
It’s really hard reading this having read the novel.. imagine going from 1000 to 10 in terms or details..