I need quick help. Fast!!!!!!?

I need to be able to do... I can't remember the exact number, but quite a few (OVER 100) pushups for my black belt test. I can barely do one, and I'm not even exaderating! I've been doing (50) bicept curls, (25) tricept kickbacks, (50) chest flies, and (25) chest presses. I only own 5 pounds weights. Are there any other muscles I need to target? Any other tips? Thanks so much!