Yeah it's rough.

And the DPS complain about TP and MP and they even have the means to restore it by using a cooldown.
Such an unfair world.

Tips that you may already know but I'll say anyway....
Hold off on the overpower spams on adds, use berserk whenever possible so you recover a few TP during the 5 seconds pacification effect, use Infuriate whenever possible for an extra Inner Beast/Steel Cyclone so you don't spend TP for one GCD action and get a TP recovery tick, hold off on having Fractures up all the time (one every berserk should be fine), use Flash twice to aggro mobs, then Steel Cyclone (should get around 3 ticks of TP recovery doing that).
There's not too much to do beyond that.
=/