losing girl

Greetings everyone. I've been lurking for awhile and decided after seeing other super sizers that this was the best place to jump in. I am going to a seminar today about banding. I started on the RNY road about two years ago until I got stopped by a Pulmonary embolism from out of no where. I am 5'3" at 320 with a BMI of 56.6. Have been on all of the diets out there including doctor supervised Modified Protein Fast (four years ago - lost until I stopped the diet) and more recently Orlistat/Xenical (gained weight). Hope this seminar takes me where I hope. But it is discouraging to see others on these boards who are starting where I won't be for who knows how long.