Well i mean its fine to think theyd make a cute couple and i guess you can ship them in private or with some friends, but as long as you dont rub it in their face or make them uncomfortable (like saying you think they should get together or making inappropriate conversation) then it shouldnt be a big problem
Being serious here, if you feel that your point of view is getting distorted in real life maybe you should think about stopping reading manga for a while or try reading other genres.
But if your imagination is running wild and you can't help yourself maybe you can consider putting that energy into writing stories or drawing comics.
Changing to other genres would probably be the healthiest option, though.
I WANT TO SHIP MY CLASSMATES (MALES) TOGETHER AND MY RATIONALITY IS TELLING ME THAT IT'S WRONG BUT I CAN'T HELP IT!!!!!!!!! #WhatShouldIDo