I asked to work after school, and my boss didn’t schedule me for the rest of the month

I’ve been working a small job at a mom and pop shop near my house to save up gas money to be able to do drama club after school, and I asked my boss if I could help stock after school and on weekends too until rehearsals start, and she scheduled me for today, and tomorrow, and not the rest of the month. I don’t know if I’ll be able to do drama club now. That’s it, I’m just frustrated. I don’t know what to do.