If you're getting this simply from the class and do not have any other MAJOR stressors in your life (terminally ill parent or child, divorce or crumbling relationship, etc) you probably need to seriously reconsider whether EMS is truly something you should be doing. The texts we use for class are written at roughly a fourth grade reading level and you are not talking about a tremendous amount of information (try taking a class on biochemistry or an upper level physics course and then compare those with an EMT class).
It simply sounds like you are part of the unfortunate trend we are dealing with in EMS due to our tendency to do a piss poor job of weeding people out of courses and having an open door policy for EMT class admissions. This lends itself to attracting the attention deficient, high strung adrenaline junkies as well as bleeding heart martyrs who take everything personally and finally those who wanted to pursue other professions but found themselves unable to hack it academically. We have- and continue to- shoot ourselves in the foot by diluting the profession with the uncommitted, unprepared and unworthy through lax standards, poor self-policing and a misguided allegiance to tradition. In other words, the problems you are encountering are not entirely of your own making, but you still bear primary responsibility for your own success or failure.
If you are seriously having that much trouble with this, you are likely not as good at dealing with moderate levels of stress as you think, whether they be chronic or otherwise. Most of the stress in EMS is chronic in nature, contrary to popular belief. Ince you get your head around the realization that <5-10% of cases are in any way shape or form a true emergency, you very quickly realize the stress in EMS is truly the same as you encounter with almost any job (crappy bosses, long hours, low pay, :censored::censored::censored::censored::censored::censored::censored: coworkers, stupid assignments, etc). The only difference is that- assuming you get a position on a 911 service- you are more likely to see someone die as an EMT than you are in other jobs. Dealing someone you don't know dying in front of you is pretty simple compared to the hostage negotiation-esque task of dealing with an irritable boss. I should know...I've been on both ends of that. Truth be told, from simply the perspective of stress, I would rather work back to back to back bad traumas day in and day out (but I hate working them because of the other aspects) than handle minor piddly cases for the duration of my shift . Then again, I'm kind of burned out and a little weird in this regard.
I don't mean to be rude, but rather just want to give an honest assessment and not provide an unfairly optimistic "YOU CAN DO IT!" response.