Is it common to see the effects of botox on the jaw even though you have a lot of chubby cheeks?

I get it once or twice a year. I get it on my masseter and temporalis muscles, 
 
and I have wide face and chubby cheeks, but my face looks much better after getting it than before. If I didn't get it, my face would look big. If I get it, it looks smaller. ㅋㅋㅌ
 
But if I
 get botox, it just sags. In my case, I have all the bad conditions for botox, but I don't feel any side effects, right?
 There was a doctor who said I should get half the amount because I was particularly concerned about my cheeks, but when I went to that doctor, my compensatory muscles were really raised and it was uncomfortable, so I got the full amount somewhere else, and it was much better. ㅜㅜ I wonder if there is anyone similar to me.