OK, I have thought about this, and I think my biggest excuse is: when I'm in a social setting, like going out with friends, visiting/celebrating with family, out with coworkers, I feel like it is too hard to stay within my calorie goal. Either there are not options available or I feel left out or like a party pooper if I'm not drinking and eating the junk food that everyone else is enjoying so much.

My excuse busters: There are always options!
1. Abstain from alcohol. It's just not worth the extra calories. I never have just one drink, so why not stick to Diet Coke instead of throwing back 3-4 beers, which can add up to 800 calories? Besides, after a few drinks all good judgment goes out the window and I make bad food choices.
2. Plan ahead. Thanks to the internet, you can see menus for almost any restaurant. I can scope out the menu, look up calorie values, and see what fits in my menu for that day. I have done this already and it takes extra time and some will power, but it does work.
3. Eat something before attending a party, or decide in advance how much and what I'm going to eat. That way I won't nosh all night on the snacks available.
4. Pack snacks! There are not always good food choices when I visit my parents. Not because they don't eat healthy, but because we don't like the same food. So I can pack things that I like and stay within my plan.
5. Change my attitude. I'm not depriving, limiting, or punishing myself. I'm helping myself and taking care of my body - something that is long overdue. :-)

If anyone else has any suggestions I would LOVE to hear them! This is something I fear will plague me my whole life and has definitely sabotaged past weight loss efforts.