2nd Abilify Update - Feeling Poor

My main psychiatrist didn't lower the dose again, my mood is very low at the moment I'm a bit disappointed. He spoke about abilify is a partial agonist so it does not block every receptor, I don't know which point is making here but these are things I don't know very well. He said also if I stay well why do I have to taper or reduce abilify? So I did the 300 mg Maintena again always postponing the 2 months injection which I'm not interested in but he keeeps repeating we will do it since april. I don't really understand this psychiatrist