I need help with singing louder and stronger...?

ok first those other people don't know what the hell they're talking about. im in choir in your grade too. i know what it takes to get a stronger voice and loud too at the same time. it all comes through your throat not your diaphram or anything like that.power and loudness comes through the throat. i dont know how to explain it but just try like yelling when your singing. it is tough to get that way and i know how it is. but i love your voice and if you just yell but not screech and belt it out you will get to where you want. good luck