I am in a very simular situation right now. Let me share with you what I literally just sent to my best friend:
" Please just be happy for me. I know you have your reservations about the surgery and that your afraid it won't work and you worry about me period, but please, please be supportive of me and this long journey I'm embarking on. It's not going to be easy and I need my best friend by my side.
This is a tool and I have to learn to use it. It's life changing and will be hard. I will be forced to learn how to eat healthy and exercise. I have plans and goals. Im learning all I can about this surgery. All the good, all the bad. I joined a forum that I read all the time from real people who are going through the same journey. I know the risks, I know what I'm getting into. It's nice to hear my husband being hopeful and supportive for once in the last 9 years. I don't want to be super thin, I just want to not be 273 pounds with a BMI of 49...I want to be healthy."
I hope this helps. You are NOT alone ♥