Yes, I recognise those late afternoon hunger pangs. Suggest you plan a healthy snack for about that time, possibly pushing it back 30 minutes or more if you can.
Fruit is full of sugar, so not sure but a buttered cracker might be the healthier option. Nairn’s oat biscuits are very low in sugar. I’d be tempted to have a couple of those with a thin slither of cheese.
Or how about a hard boiled egg?
A small handful of mixed nuts?
Or, if you can just eat the one, then alllw yourself just one biscuit with a cup of tea. I firmly believe that having one, little treat at your weak time can help you stay on track.