There is only one way. Play longer time controls regularly and be patient. It's just a matter of getting used to the new format. No rocket science really.
Will I ever be anything more than a blitz player
It’s not boredom, just a reflex. I also have trouble slowing down when posting the ai because they move so fast and I get into a rhythm.
Any suggestions how to break these habits?
I am not able to play longer tme controls. I make quick moves and lose the game. I get bored thinking for long periods. Is there some way in which I can play longer time controls.