How to have thin, flat hair for guys?

okay so im a dude and i have really thick, poofy hair. I dont have afro hair or wavy hair I just have straight jet black hair like Native Americans even though Im Hispanic. The thing that I hate though is that my hair isnt really thin/flat on my head and instead I have poofy thick hair that makes hair strands really stick out on sides of my head. I dont want the type of hair that George Lopez has when its short, I want the hair footballer David Beckham has. Also when I step out of the shower my hair turns REALLY poofy like a straight hair afro. Are there any tips to make my hair thin/flat permanantly? And trust me Ive used gels and pomades and they only work for a short time. =(