Congrats! Ive been a paramedic for about 2 years now and the best advice i can give you an an EMT is that even if you want to progress more in the EMS field is to get proficient as an EMT first.
Things like ski patrol still require an OEC class or what use to be the ASHI WEMT and you would have some more courses involved but if you want to do that, I found it easier to get somebody to pay attention to me if i have one of those listed before hand, even tho most resorts offer a class for incoming ski pat.