lockstockbarrel

So I'm a new EMS based paramedic in a fairly large urban center. One of the biggest challenges I've found is keeping myself relaxed in tough situations (critical MVC's, pediatric arrests). I know that some amount of anxiety is normal for most paramedics, seasoned or new, but I feel that between being in my FTO's crosshairs and just getting acclimated to "crisis management" that I begin to sweat the small stuff and lose sight of the things I've been trained, educated, and KNOW how to do - and so I begin to second guess myself and overthink things to the point I become scatter brained. So, any advice for the new guy? How do you remain calm/calmer on those big calls? I use to be the type of guy that was always the most laid back in the hairiest of situations, but now I'm beging to question my ability to do this job. From the moment the pager goes off, responding, the scene, to the receiving staff. Will this ever pass? The simple ALS calls seem to go great, it's the just the major trauma and potentially emotionally charged calls.