Welcome @jillco, It can definitely be a struggle getting rid of the extra weight. I'm 80 and struggled most of my life with weight. What has helped me more than trying to strictly follow the low carb healthy fat along with intermittent fasting was to focus more on the fasting and lowering the carbs and fat. I have found eating one or two meals a day along with fasting 18/6 or 16/8 I can maintain my weight. If the pounds start creeping up due to what I eat, I switch to a 20/4 fast and on occasion fast for 24 hours or a little longer. I also try to get in 30 to 45 minutes of some kind of exercise 5 or 6 times a week. I know they tell you not to weigh yourself everyday but I do it at the same time every morning so that I know where I'm at. I have a Blue Tooth scale and use Weight Gurus app and scale which makes it easy to track daily - https://weightgurus.com/.

What fasting plan are you using?