lol. Don't have much time to waste. Hilarious. You're in highschool dude, get real. I'm 31, and I can assure you that you're being short-sighted by suggesting you can't try something new because you have high school powerlifting meets approaching. That's absurd.
How tall are you? Unless you're under 5'5, you will be severely limited at 138 lbs. Your lifts WILL stall if you don't add bodyweight, especially your bench press. I'm 5'10, weigh 190+ lbs, and I strongly believe that I won't be seriously competitive without gaining 30+ lbs at my height. My total is around 1300 lbs right now.
So to sum it up, programming is not your issue. Food is your issue. Eat more of it.