What is your budget?
you probably want a wide all mountain board, size 157-160, medium flex, with a little bit of set back, and a rocker/camber combination.
K2 Raygun Wide-$320-gets great reviews, nothing wrong with this board, matches your level but will let you grow a bit.
Ride Antic Wide-$400-great all around board, is kind of stiff but that will let you advance quite a bit on this board, it comes with a lot of good features and design elements that make it tough to beat for all mountain riding at this price.
K2 LifelikeWide-$400 similar to the Antic but completely flat camber
Most boards over $400 are much stiffer, these arent
Nversummer Legacy (the wide version of an SL) would be my choice if money isn't an issue.
Possibly the K2 Turbo Dream
Or the burton custom flying v wide
all of these boards are going to be stiff than your bullet. which will suck at first but once as you progress you will appreciate it more.
Dude, suckin at somethin' is just the first step to bein' sorta good at somethin'