Acting in Sixth Form

I am a child actor and so I have to miss school for auditions and shoots but this happens very rarely in a year. Last year and this year, I have only missed school a couple times and I usually get 1 job a year. At home, I have to do self-tape auditions which happens more often, maybe 6 or 7 times a year, they only take around 1 hour to do. Self-tapes therefore do not require me to miss any school. Would I still be able to do my A-levels and get top grades whilst being a child actor?