My Goal - Losing 40 Lbs

I've been on and off diets for the last few years. Stressful conditions led me to give up healthy eating, exercising, and towards a life with hardly and fitness activity. I think, in 2014, I must've depended on take-away foods for most part of the year.
For the last two months, I've been trying to get myself to move towards a healthier lifestyle, but realised that self-motivation was quite low. Came across Daily Strength today, and joined some groups.
Hoping at least this will help me get back to a healthier life.