Senior pictures.. hair, cutting it myself?

I have been asking my mom for the last couple of weeks to get my haircut and she won't take me. tmmro my friends r getting pictures taken and they want me to come so we can get some together, I haven't had a hair cut in months so it looks really dead at the ends and my bangs are horriable, so should I try to cut it myself? I have layers so if I mess it up it won't be that noticable, I think cutting it myself is better than getting pictures with split and dead ends, what do you think?