Loser?

So, one of the things on my 30x30 list is feeling comfortable in my own skin. I have been really struggling with this one lately.
When I weaned Joe last Aug/Sept-ish I was at 165lbs, which was about what I weighed when we got married in '03. I was feeling pretty good, but still felt that I could use to lose some more weight. But my metabolism changed alot when I stopped breastfeeding and winter set in, keeping me indoors alot more and now, I'm 25lbs heavier. I am down to just a couple of pairs of pants that fit me at all, none without a muffin-top. This is not good for my wardrobe, bank account, health or self esteem!
But I am taking action. I've started a 30 day trial of Curves through the Avon/Curves Fitness Study. I worked out at Curves twice last week (then we were out of town), and I went yesterday. This morning I walked two miles and did some weights with a friend at her appartment's gym.
I'm trying to make better choices at meal times without being on a "diet". I'm really bad at diets. I'd much rather not have the things I love be off limits because if its off limits it just makes me want them more!
Its not exactly the Biggest Loser or anything but I could use your prayers as I try to get healthier for me and my family's sake!