Warrior Tanking

[Pentinor]

Need some advice. I've dabbled in tanking in previous mmos (namely aion)...and while I dont exactly enjoy it, I dont hate it either, and would much rather do it then group with some tanks who dont seem to know they have overpower/flash. Long story short, I decided to level up a warrior after getting my relic to +1 on my DRG. Had no troubles what so ever in 4 man dungeons/ifrit hm/garuda hm...but mother of god titan...I cant tell if its me, or the groups im getting for the past several days.

Can get past heart phase pretty easy and can dodge bombs npnp but this is where I need some...clarification on what to do. Im popping inner beast before table flips and making sure storms path is up all the time, but its still hitting for 3300 give or take which is more then half my health. Im using ToB/Foresight/Vengeance when im not at full and a tableflip is inbound or if im at 50% i'll just pop lolmgang and convalescence (in hindsight I should probably stop using convalescence there since I just get benedicted =/)

My questions are...

1. Should I be using my CDs better or using them not just for tableflip, but also for stomps? I cant help but feel like if I used my cds not just for tableflips but for other things healers would have an easier time keeping eachother up.
2. Is my gear good enough or should I throw in some stuff from CT?
3. Am I just getting stuck with bad groups?

Gear is full Darklight+HQ Rampager+HQ Walnut bread. HP 6480 without food.