Personally, I think saving lives is an act that God grants you to get to do so I think the EMT training sounds really important, and it sounds like God would understand and be proud of what you're using the time to do. It's not like you're out partying or hurting anybody with this decision! I personally think you're doing the right thing, you should be proud of that training! Without people like you doing this, a lot of people wouldn't get the help that they need and that I feel God intends for them to recieve! But, that's just my 2 cents on the matter!