just my 2cents... but I took a PAY CUT to become a nurse.... went from flight with 15 yrs to BSN RN.... just for some perspective... :)
Paramedic scope of practice varies WIDELY state to state, and region to region. I totally agree with the different thinking. This is what makes the RN / EMTP -as in one P and another RN-combo on the helicopter so great. (This is my experience.... ) Paramedics think from the outside in (scene safety, hazards, stabilizing the car, how to manage extrication...) and Nurses think from the in out (patient, comfort, more longer term care, etc.... ). The paramedic brings the ER, the nurse brings the ICU. It's a great combo. That being said, the RN's who just go and get their P-card (without any experience in the field... I know many do it and are great) don't bring the ER like a field born and raised medic does. Not saying that nurses are oblivious in the field, or paramedics can't do a crazy critical care interfacility... because they do and can and are awesome.
Do what you love, do what makes you happy. Do one thing.... awesomely. so my advice for what it's worth... keep on keeping on with nursing school, you'll have many more opportunities in the long run, but don't let your EMT go either. As a RN with ICU time and your EMT, you are / will be way appealing to a flight company. even with 'just' your basic.
PM me if you have questions.... best wishes what ever you choose.