I know he can but its making me mad!

My 17 year old brother Chris has decided he wants to do sound for a career.Whats bad about that its normal right? Yes but not after years of me saying I am gonna do like I wanna do it so bad I found the school I found what the pay is I did all my research and what does he do he goes and askes his theather friends who do sound if they can teach him he's fucking getting the hands on trainning when I should.I should ask them right? I should but I don't know them that well like he does.Sure I could ask him to talk to them for me but I am being a selfish bitch right now and don't want to.It's just after I said what the pay is the next day he goes "I wanna do sound for a living" and I was like oh cool so do I blah blah and when he told me last night that on the 18th he's going to learn sound I got sad cause he knows I want hands on training before I go to the school so bad but whatever I'll find my own.