Anyone successfully lose weight 70-80 yrs old?

I am a 70 year old male. I weighed 265-270lbs when I retired at age 67. I knew if I wanted to enjoy retirement I would have to loose weight and I did. I currently weigh 170lbs and at one point was below 160 lbs. I am 6ft tall. I started walking just a little bit at first doing the 10K step recommendation using my trusty fitbit blaze and gradually increased distances to where I am today. I typically walk 15-20 miles a day now six days a week. Today for example I walked 21.81 miles. So yes 70-80yo folks can loose weight and keep it off. You read about the “secret” to loose weight often here on MFP. All it takes some motivation, a little discipline, and most importantly consistency. Consistency saves the day no matter what you do. I limited myself to more or less 1500 calories a day during the first year and lost over 100lbs. Health benefits are emmence. Went from taking six different medications for various ailments, including diabetes, to zero. Life is good!