I've talked about my weight loss on other threads.
I was in an abusive relationship and completely lost myself.
I was making excuses for my weight, mainly the Peri Menopause and how I looked.
I started to overhaul myself in December, I was determined to be Physically, a different person, by the end of this year. My GC was born and I wanted to be a "Hands on" Nan.
I've lost five stone, by using "My Fitness Pal" and adding daily exercise. I bought a step tracker and some days it's just walking.
After losing two stone, I joined a gym (this was on the advice of the Community Forum on MFP. You've got to be aware of the pressure of some types of exercise on your joints when you are carrying that much excess weight.
That's not an option for everyone, but you can buy a Home DVD, Kettle Bell etc.
Diet wise, I mainly "Clean Eat", limit White Carbs and Non natural Sugar. MFP works for me, because I like the occasional glass of Wine and Pizza etc.
I can't do rules, such as "No Carbs after Xpm" etc, I'm too busy/cold/hungry/being kind to myself etc.
I'm 47, I've accepted weight loss of a lb a week when I want something outside of Clean Eating.
I've changed my body shape, haven't got "middle aged tum" and I'm not looking to cover my arms.
More importantly, my fitness and energy levels are through the roof, I'm stronger than my adult DDs and my hair/Nails and Skin are miles better.
Sorry for the long post, but you can do this, if it's really something that you want, for you (and as a side effect, your family).