Always forget my DRG rotation in raids

[Aldagrate]

I'd like to think I know how to play my class. My problem though is that I always fall off my rotation in FFXIV, and from my experience I can never salvage it. I always forget to add jumps where I'm supposed to or add damage buffs when I should, and all around I turn into a really terrible melee dps. I'm starting to feel like the raiding scene isn't for me, even though it's what a bunch of my friends in my FC are doing, and I wanna run stuff with them and feel like I'm actually contributing, not when this is happening. And I thought I had made good strides after developing the muscle memory to do my rotation, when it completely falls apart in raids like Rabanastre. I already got called out for not doing enough dps in Jade Stoa EX. I'm afraid I'll just get left behind.

Any advice?