Congratulations! You should be very proud of yourself!
Not trying to be a bummer here, but I;ve been there myself: keeping it OFF is the hardest part. I lost 80lbs about 11 years ago, when I cut out sugar and most of the fat in my diet (I was diagnosed with pre-diabetes, hence my diet). I really wasn;t trying to lose weight, per se, but just trying to get the blood sugar under control. I went from an XL (sometimes larger in jeans) down to a X-S/Small. I;ve managed to keep most of it off, until about 4 years ago, when I went up to a Medium; I;d estimate about 10-13 lbs. Medium certainly is not big, I know--but I don;t want to go back where I was before, due to my health. (I may add that I;m 5ft tall, so any weight gains looks huge on me.) Well, a month ago next week, I started a diet, after seeing a pic of myself at a staff party. Within 2 weeks, I had lost about 10 lbs (I don;t own a scale, but am estimating, also with DH;s critical eye, we are pretty sure that it was at least 10lbs.) I;m back to a size S in many things, but want to drop another 10lbs. Looking at myself in the mirror this morning (NOT a pretty sight), I think I have dropped 2-3 more lbs since then. When you lose weight, you discover body part you never saw before....) I feel SO much better, and look so much better, though, being a large-boned gal, and broad, and short, I;ll never be model material, never mind how small a size I am in clothing, but it;s the best I can do.
The saddest thing: my weight gain wasn;t due to over-eating (I never was a binger), but just putting a bit more fat and sugar back into my diet--a cookie a day did it, and a promotion to a more sedentary job. My body just can;t tolerate sugar, I guess. And I get sick of the sugar-free chocolate!
Keep up the good work! Buy yourself something nice (and slinky, perhaps??)!