Just turned 40 and 40lbs over weight

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So as the title says I just turned 40 ( in December) I've been on MFP on and off for a few years, I know it works, I know I can do it, I just need some encouragement which I don't get at home!
I "fell of the wagon" when I quit my job last June and since then I've gained around 30lbs which is depressing as I was only about 10lbs from target