Need to lose weight-never thought I'd be this way!

I'm 37 and need to lose weight. I never thought I would ever be in this position. Up until 10 years prior I was a slim guy with a great body. I was the kind or person people would say was fit and I was always complimented on this and the fact that I could eat what I liked and not gain weight. I liked how I looked in the mirror it was great. As I started to do better at my job and started to jump from one great job to the next the money started to increase. I didn't need to think twice about eating at the best places and slowly my weight started to pile on. I think I was in denial this was going on, even when I was spending on clothing which were increasing in size every few months and a belly was starting to develop and get bigger and bigger.
A couple of events have made me look at myself and what I'm doing to me. My one uncle died due to heart issues related to his weight. Another uncle suffered a stroke last year. I realise now that I'm going to go the same way if I don't do anything. I had one last high calorie unhealthy meal on the 31st of December. 1st January I decided will be the first day of my journey back to healthy eating and exercise. I have basically told myself it's either healthy eating and exercise or death in a few years. Maybe it is overdramatic but I need the shock to my thinking or I will carry on as I always have.

I am using this site to track my weight and to track calories. I look forward to learning about other peoples experiences. I have already seen a loss in weight and my mindset is calm and is not craving bad foods. The other day I wanted a chocolate so I had some- but I only had a small piece from the bar. It was the taste I was craving-and that one small piece was okay for me.
Anyway that's my story so far!