BK Breaker Help

Hello, I've started to switch to BK breaker from Asura and so far it's okay. One thing I'm struggling with is my gauge gain especially in G2 of Aegir. I find that I'm usually low on stamina or gauge if I miss some skills my dps gets delayed by quite a bit. Is it cause my combo is bad or I just need to learn to use it on proper timings? I usually start out with Adamantine > Brawl > Yeon then the rest of the yellows to fill. If I mess up I try to generate with Celestial Force Barrage but that destroys my rotation so I try not to use it if I can.