I hate working afternoons and I said that to my boss several times now but still keep getting put on afternoons. I'm going to quit

I was hired for mornings and that's what I did for over a year now. Suddenly I'm put on random afternoons and I was ok with an odd closing shift or two and then it became a weekly thing where I was closing twice a week. Now I'm closing 5 times a week and I'm mad. I mentioned it several times and my boss is like ok ill put you back on mornings. It goes back to closing twice a week and opening three timee a week and i was ok with that. Next schedule comes out and I'm closing 4 times a week and opening once... not thrilled and the newest schedule is closing 5 times a week. COME ON MAN I DON'T WANT THIS I HATE CLOSING