Fair's fair, but be warned that it could cost you some friendship points.
The basic rule of trying to make it as any kind of star/personality is that you have to be prepared to not have friends. This advice applies more generally to people trying to get properly famous, but the advice is that you can't be a star and be liked, because anyone with less talent will hate you, and you have to screw over anyone who is in your way if you can.
For your specific conundrum, it's up to you. If this is a real dream of yours, to be an actor on stage or screen, then take it without hesitation. If this is just a diversion for school, probably don't bother.
The basic rule of trying to make it as any kind of star/personality is that you have to be prepared to not have friends. This advice applies more generally to people trying to get properly famous, but the advice is that you can't be a star and be liked, because anyone with less talent will hate you, and you have to screw over anyone who is in your way if you can.
For your specific conundrum, it's up to you. If this is a real dream of yours, to be an actor on stage or screen, then take it without hesitation. If this is just a diversion for school, probably don't bother.