Its awesome that you are getting this done at 19. I tried to have it done at that age and I was around 400lbs at the time but my insurance wouldn't do it. I am now 24 and just got banded 6 days ago and I am super excited for what I will be able to do in the future things like you want to do such as ride a roller coaster without worrying. And I am also going through this process with my mom, she will be banded next month. Good luck to you!