Im the same age as you.Ive been losing a pound a week over the last 3 months.I have three meals a day.If Im at home only eat about what will fit in a cereal bowl.If Im at work,one sandwich,banana and one yogurtcounts as one meal.
And no junk food most days,.If you arent losing weight you need to reduce how much you eat,but to do that you need to keep a track of what you are eating.Chocolate was a real problem for me and 2 bars a day was the normal thing but I found with chocolate,if I didnt have it for 2 days,the craving would go.But all this was no good when I was sheilding,I still put weight on.You need cardio,walking might not be enough,something to get slightly out of breath,running or cyclinv maybe