Hi Charlie. I think you are doing the right thing. I am 23 and have been overweight the majority of my life too... I have dieted and lost some weight, but have never been able to lose enough or keep it off. I look at this like a new adventure and a new chapter, where I can experience new things and really be an active participant in life and not just the person on the sidelines.
I ultimately made the decision when I saw my Aunt, who yo yo dieted her whole life, lose a majority of her weight and keep it off for over two years with the Lapband. I don't want to feel defeated each time the newest diet fails, and I don't want this demon on my back for the rest of my life. At this point in time, this is the only thing I can do to assure I get to a healthy weight. I have gone through all of the emotions, and still feel a little ashamed that I have to resort to surgery to lose this weight. I am one of those people that has always excelled in everything I've done, so admitting I'm a failure in this department is still hard. I'm sure a year down the road I will not feel any remorse over this decision.