Get that Evil eye upgraded to 4/4 as soon as possible. Makes a world of difference in making your rotation smooth and allowing you to get a storm bolt inside every colossus smash. (Also start using storm bolt instead of Bloodbath).
BT = Bloodthirst, CS = Colossus Smash, RB = Raging Blow, SB = Storm Bolt
Your opener with storm bolt would be...Prepot, battleshout, charge -> Pop Reck/Banner, BT -> CS -> RB -> BT -> SB -> RB, spamming heroic strike as much as you can inside Colossus smash. If the BT inside colossus smash doesn't crit use berserker rage.
Filler is just gonna be using BT -> RB -> Bloodsurged wild strikes or empty GCD/Heroic Throw -> BT again
If you're using Dragon's Roar that can take up the place of that empty GCD, and it obviously does a lot more damage than heroic throw.
If you're using bladestorm best to use it after a BT that didn't crit and then cancel it after enrage runs out (use a macro and keybind it, can easily make it bound to charge). /cancelaura bladestorm