Need some input.

I need some mental help. I had my first plastics consult yesterday for my breast lift. I was happy to hear from the Dr. that most of my breast is still tissue that I will not be needing any kind of implant and will only go down about a cup size. So just a lift is very possible. That was great news for me. He actually did a full body consult and informed me of different areas that he could do. I know my arms need work but after seeing the scars, I have decided that that will be the last thing I do. He suggested a complete lower body lift for my tummy instead of just a tuck, which is fine. But here is where he got my thinking; he said I have about 10 lbs of skin to remove in my lower body. I told him I wasn't at goal yet to be ready for that, he was surprised. He asked how much more I wanted to lose I told him 20 lbs more. He said, you don't have 20 more pounds of fat to lose. He said maybe 10 more but after that all I have left is skin and muscle. Now ever since day one of this process I have always wanted to get down to 150 - 155 but he is telling me that 165 should be just fine. My number always came about by the BMI index, given my height I went with the high side of healthy because I do have a big bone structure. But I know that the index doesn't take into account muscle mass. Only pounds on the scale regardless of where that weight is coming from. So I am having a hard time wrapping this information around my head. I have 2 more consults scheduled so I will see what the others tell me. And I have my one year appointment as well, so hopefully my surgeon will be able to tell me more as well. Did this happen to anyone else? Did anyone else re-evaluate their goal? Was it hard to accept the new number instead of the magic number you had in your head when you started your journey?