This is going to sound silly maybe, but I try to bring myself very much into the moment when I get these feelings. I take deep breaths and breathe my way to serenity, and really try to take in my baby - her ears, her lovely legs, her feet resting against my arm. It doesn't always work & sometimes I'm way too frustrated to even remember that I want to be calm ! but I do try. I sometimes lay in bed thinking - just go back to sleep!! and I listen to her whinge for 20 minutes, when if I had of got up when she first wanted me, I'd be back in bed already by now. That motivates me too!