Seriously, how do I stop myself from reading the entire book at once?

I’m not kidding this is becoming a problem. Any other genre I eventually get bored after a few hours and decide to pick it up tomorrow but I can’t seem to stop reading romance books without rushing to finish it in one go.

I am very tired. (Giggling and kicking my feet) but tired. I have class in the morning.

EDIT: thank you everyone! I am starting to realize I only do this with books I’m not really vibing with so I try to “get to the good part.” I guess I have to start getting pickier with what I read