The tip today is - get support.
Family and friends are great. But you really need people who are where you are or have been. I highly suggest finding a free board to post on. I used Oprah.com for the first year.
Other people use Weight Watcher's. The in person is great and if it works for you, go for it. However, there is also something great about the anonymity that a board offers. You can be completely honest and no one knows it is you.
Also on boards where people have a similar amount of weight to lose, no will judge you for being that weight. If you start to successfully lose, they want to know how. And if you struggle, they are their for encouragement.
So, find a friend who doesn't know you, just the situation you are in.
Yours in health, Kate