Should i get my hair thinned out?

hi i was wondering if i should thin out my hair because i want nice looking hair like all my friends. mine looks like **** compared to theirs. ive never had it done before and i dont know if it will look good on me. i have a picture of my hair when its all dry after i get out of the shower. i usualy hafta flatten it then i straighten it and its a long process i just want nice straight hair. i hate this curly hair :P heres what it looks like please help me and let me know http://i813.photobucket.com/albums/zz53/drockj/1205001610.jpg