Artangels94,
If your dreams and passion is to be a Flight Attendant, you are half way there! Please don't get depressed and bogged down by your weight issue . Think positive and use your motivation to solve the issue. Find a decent gym, exercise, eat well, work at it hard and you won't recognize yourself in 3 months! I too was once your weight and height and it depressed me no end. A good friend got me into the exercise and I found I really enjoyed it and it improved my self esteem enormously. The hard bit is getting started. You have all the reasons in the world to do it. Please give it a go!
Remember 90% of people have the opposite problem. let us know how you go. Good luck with it all.
Cheers
Octane