My Switch From AT GOAL to Actively Seeking Another 10-15 Pound Loss

What's up with that?? If I was at goal in December, why am I active now and looking to drop another 10-15 pounds? What did I do wrong to take me from "at goal" to active again? NOTHING! I was 151 when I saw my Dr in December. I was wearing sz 4 jeans and sz 10/12 dresses. Yes I was up to 157 a few weeks ago after carb loading for my HM. Totally normal and acceptable. That is not the reason I went back to active status. Right now I am roughly 152. I'm still in sz 4 jeans and sz 10/12 dresses. So why then did I switch my status? It's simple. I set a new goal. My dr told me to shoot for 145-155. My PT/N fully believes I can get to 138-142. The difference will be in totally leaning out my body fat. My Dr believes that a woman of my age should carry a little body fat. My PT/N believes a weight lifter/body builder of my age can afford to go leaner. I CHOOSE to give it a shot. Now we all know that muscle weighs more than fat and I think I can safely say that in my current physical condition, I don't have a whole lot of body fat left to lose and by gaining muscle mass, I may never get the scale to drop to the 138-142 range, However, I'm willing to give it an honest effort. Will this be easy? HeII no! I'm talking some serious rearranging and remodeling! Since I am sugar sensitive, I carry my remaining body fat around my upper torso. My back and chest specifically, with a bit still at my waist. I'm already eating clean 85+% of the time. I'm already lifting some serious weights. I'm already running some impressive distances, with impressive times. Is there room for improvement in my food and fitness? Sure there is! And that is where my tweaking will come in to play. So, do I consider myself a failure because I'm continuing on this WL journey? Will I feel like a failure if in losing the fat and gaining the muscle, my scale does not cooperate? NO WAY! As I said, this is more about remodeling than anything else but I'm hoping that by returning my focus somewhat to the scale, I'll be that much more focused in my journey. I want to see a difference in my strength, my structure and my appearance this round. If I see a drop in the scale along with that, YIPPEE! If not, as long as I see a difference in ME, I'll be more than satisfied. In the meantime, I AM A SUCCESS STORY and will continue to write the next chapter using the tools that I KNOW work for me!