Are you contemplating rereading something? Your post isn't very clear.
Manga
I second the request for more details.
- What was the issue that stopped you from reading?
- Are you looking for recommendations or just reasons to give it another go?
- Are you interested in something specific (theme, genre, art style)?
All in all, how can we help?
As a general rule I just try to work out if an activity adds more to my life than it takes away when deciding how to spend my time. Is there something you'd rather be doing? Is reading manga affecting your mental state?
If only some manga makes you feel bad, consider asking for recommendations and if something bothers you just stop. If you feel bad because of social pressure or something, another general rule for me is as long as you aren't hurting yourself or others then do what makes you happy. In the interest of free speech, others can state their opinion if they want and piss off if they become bullies about it.
Manga is a broad medium. I would either scroll around and see what you like and drop it if it's not good or ask for suggestions with some aspects you want. There's lots of trash but when you find some good ones, it's a great feeling.