I think a little obsessing is okay, if it helps get you where you want to go. Frankly, by the time I reach my goal weight I'll be so happy it won't matter if I'm 210 or 180. I will have accomplished a major goal. (Actually I'm going to shoot for 208 to make it an even 100 pounds). That's how I feel from my current weight anyway. I may feel completely different if at 210 I don't have any muscle mass and am the wrong shape. That's why I look at 210 as a preliminary goal afterwhich I'll re-evaluate my situation.

And although 165 is within reason for my height, I can't help think what a bag of bones I might look like then, but again I'll leave that decision till later.

Good luck on your new goal. I wish you well.