Insurance approval

I found out yesterday I was approved, but I was told that I would have a year to do the surgery. Now I am told it is only good until the end of the year. I am so bummed, I planned on having it next spring. I can't afford to be off work for 6 weeks now. I have to be off for atleast 6 wks because I have to lift 75lbs at work. Thinking maybe I should just say heck with it and try diet medication instead of surgery. Now that I am approved my husband tells me I don't have to have surgery because I can do it without surgery if I just exercise.