Anyone here having or has had surgery at the University of Michigan hospital in ann arbor...

I am in the process of preparing for Wt. loss surgery. I'm currently following up with my PCP for a few months as proof that I'm trying to loose wt. I have BCN premier care insurance. I'm not sure what exactly should be discussed at my PCP visits, and has anyone had surgery right after trying for 6 months to lose wt? Do you get approved quickly? I'm still learning and reading while I go through the process. I was also wondering if anyone lives in the ypsi/ann arbor area that is willing to give info and become a wt loss buddy with me before and after the surgery.