Well, looks like you already got yourself at least one friend so far - that didn't take long.
Anyway, welcome to the forum. My suggestion is to start a journal in the Weight Loss Diary section (if you haven't already). Most of the members spend their time in that section and check in on each other fairly regularly. We all keep tabs on one another and try to do our best to offer advice, give support when its needed and basically just be there for people who need it.
I have two kids of my own and the fear of not being around for their future is one of my biggest motivators when it comes to losing weight and getting healthy. However, I can't just do it for my kids - I have to do it for myself. Yes, my kids are inspiration (as is my wife), but I had to take a long, hard look at myself to find the desire to get healthy for myself before I was able to start making honest changes in my life. It's easy to say "I'm going to get healthy for my kids" and then eat healthy and exercise for a quick week or two, but outside motivation quickly fades. It quickly fades because you'll end up making excuses to NOT be healthy. Why? Because, unless you are doing it for you, you are never going to change.
It's great that you're using your kids as motivation, but I hope you can find a reason within yourself to change as well.
Good luck.