hell no get a rocker board they are much more fun.
My vote goes with the Ride Machete in 155 if you want to do more park or a 158 if you want it for more all around. It will definitely take you as far as you want to go skill wise.
im 5'10 165 lbs and ride a similar 157 for everything except jibbing.
Dude, suckin at somethin' is just the first step to bein' sorta good at somethin'