I am painting a room and have no idea what I am doing. We are painting the room grey and would like to do the trim white. Do we also paint the doors? Do we paint the ceiling? If we paint the ceiling, do we paint it the same as the trim, white? Or do we paint it the same as the wall color, grey? Do we get the trim paint in semi gloss? Would the doors and ceiling be semi gloss too if we paint those? Any other advice besides to hire a professional