How do i move on? life feels so boring without him

I think you should change that. Do things for yourself and do things that make yoy happy and bring you joy.

you say life feels boring without him, do you miss him most, or the life and routine you had around him?

when my ex left, even normal days felt painfully empty because so much of my routine had revolved around him.

I am asking the same question every day. Try to keep yourself busy, I will go watch some movies to pass the time faster..