The point is, you're doing this. You're working towards that goal. According to your SW/CW you've lost 25.5 pounds. that is AWESOME. You're not going to let another day float by due to your weight. You've made a lifestyle change that will impact you and your children. Be very proud of yourself! It's one thing to vent about something like this with a tub of icecream in your hand, you're venting out frustrations that should be what motivates you. You've got the best motivation right there! I know kids remember things when they're little, but you've got some important years coming up with them, too. And thats equally important.
Keep on keepin' on and give yourself a pat on the back.
And who cares what negative things the family would say. This is for you and your kids. Instead of being embarassed about the past, be positive and embrace the present and the future.
You've kicked arse so far and I'm sure you'll continue.