Losing weight in your 40s

Edit: what a great response! Thank you all for your advice, I really appreciate it.

Hi everyone, hope your weeks are going well.

I’m 43 years old and up until I was about 40 I could lose weight really easily and keep myself very thin.

But now? I’m 5kg more than I want to be. A few years ago I could lose that in a week by just eating only one meal a day and working out for a couple of days in the week.

But that just isn’t shifting it. I’m nowhere near overweight but definitely not happy with how I look. In fact I absolutely hate it.

Since I am right in the middle of the healthy weight range now and living a healthy lifestyle I’m wondering if I just need to learn to love my body as it is or if there’s some other healthy way to drop this.

What are your experiences please?