Intimidating Dream

The dream of mine that intimidates me a little bit is my career after high school. I would like to become a Firefighter. The part of this that I am fearful of is the road to become one. It takes a lot of schooling and learning. Also, I would have to take multiple tests to get to higher levels of being a firefighter. First I would have to go to school to become a paramedic, then take a test that basically says I learned what was required and that I understand it. After that I would go on to the firefighters academy and do training there. I'm pretty sure that if/when I get to these stages, knowing myself, I'll will become overwhelmed with all that is required of me to do. The second to last reason I think would intimidate me is the just the fact of being a firefighter. It just seems like I'm supposed to do good. And if i didn't do something right for some reason, I would feel as though I failed in some way. FINALLY, the thing i fear most is having to risk my life. Knowing i have to save people or having to make the right decision in a split second at certain times.