Hi Katy and welcome,
Its really sad to hear you've had a bad time but it sounds like your on the right track to getting things back together for yourself, well done for that.
I can only presume you have gotten help for the depression, I know from experience that it can't be beaten on its own, my husband has been on anti-depressants for a year now and he couldn't have beaten it without them. Hes doing great now though.
I think you will find a lot of great information here to help lose the weight. I only joined about a week ago and already i'm feeling so motivated by the information I have read here.
I wish you good luck Katy
Take care, Vic Chick