I'm so scared of roller coasters... What does it feel like?

I used to work at a theme park and I ride them ever day I go to work. What it feels like to be on a roller coaster depends on the person. The first drop is the only thing that scares most people after they p that the rest of the ride is nothing but excitement and fun. on giant drops you should scream. Screaming actually help you breath while your going down. basically when going down a drop your body is almost floating, and so is the stuff inside you "water, stomach acid, food etc." this is my guess but the air in your lungs is effected as well. it rises up your lungs almost like it's hard to breath. so you scream to let the air out and not have that feeling of not breathing. on drops that turn or twist "like batman the ride and others" you don't feel it as much as a straight drop with not turns. Loops should be the least of your problems, when going through one the gravity actually keeps you in your seat. the big loops might make you feel weightless at the top though. trust me, go on a roller coaster that's the tallest and highest in the park or if your not up to it just go on a ride that's maybe the second tallest and has plenty of loops. the best part of roller coasters is the wind in your face. the weightlessness you feel on top of a hill (airtime) also if your still scared of maintanence and stuff like trains getting stuck on loops don't worry the park would'nt want that to happen so they take extra precaution into testing out the rides even before the park opens. If some stuff do happen that would be bad for the park so they'll try everything to prevent that... All I can say is breath in deep and scream your lungs out and have fun...oh and never close your eyes...you'll be more proned to motion sickness.