When I was on Haldol I took 5mg three times a day, plus getting injected with it once every three weeks with I can't remember how much. I don't think you're on a ridiculously high dose. But I don't know for sure. I just know after seven years I had to get off that stuff because it stopped working and was causing me muscle stiffness.
I agree with others about taking your meds right away in the morning.