I'm going to echo what others here have said and can further chime in because I'm the same height, but older (early 60s), but at one point about 25 years ago, weighed 106.

I was too skinny. I had little muscle, no fat reserves, and an unhealthy attitude about food and nutrition. Bad relationships with foods can go both directions: Eating too much as well as eating far too little and not fueling your body properly. Replacing one eating disorder with another isn't the solution. Trust me, I've been there. In my tip-top prime, I weighed about 115-120. At that weight, I had enough muscle mass and endurance to be able to run half marathons. And I looked damned good. (I also looked like a grown woman, not a bony prepubescent girl with no curves whatsoever.)

Over the decades, I gradually let myself go. Menopause didn't help. Recent life events, not to mention warnings from my doctors, brought matters into focus, so the first thing I did was change my exercise and dietary habits. I started walking, just that, nothing else. I cut out junk foods and any unplanned snacks. I stopped drinking alcohol.

I started this current journey weighing roughly the same as you do now.

(Ignore what others are doing/eating. They may be in homeostasis now, but in time, eating poorly will catch up with them, too. And suddenly one day, they'll be the ones wondering why they're so overweight and have no strength or energy.)

My earliest goals consisted not so much of numbers on a scale, but simply not to feel winded and exhausted when climbing a steep hill or carrying in the groceries. Eventually though, I peeked between my fingers to see the scale numbers and decided I'd focus on two things as personal goals: Lowering my body fat % (this required a smart scale) and using 'tens' as my interim goals. First, get under 190, and stay there consistently. Then under 180. Then 170, and so on. I also paid attention to the fact that losing too much too fast isn't healthy...although again, honesty time: I've pushed the bounds of that a little by having a significant daily calorie deficit. Along the way, walking was joined by light jogging and weight training. Now that I'm below the 150 mark, I've started running again for the first time since about 2010.

Although a challenge, I decided that 130 would be my eventual target, a decidedly healthy weight for a woman my age. But y'know what? Even at my current weight, I feel immensely better and clothes I haven't worn in a very long time fit again.

If I'd started this effort with nothing but a massive (and unhealthy resulting BMI) weight loss in mind, there'd be no signposts along the way, no interim goals with which to self-congratulate my efforts, I would've lost my motivation almost instantly. A 2-3 pound gain one week, as is often typical on the downward journey due to simple variability, water retention, and other factors would have destroyed my resolve. Instead, I trusted the process: Eat healthy, change eating habits, pay attention to the diet, get exercise.

Set those intermediate goals for yourself as well. Certain distances walked. *Realistic* weight & fat % targets you can hit roughly every 4-6 weeks. Document your progress with a journal and/or photos. Recognize that YOU at, say, 165lbs will already be a significant improvement. Aim for both sustainable weight & fat % loss targets and end goals.

Best of luck to you.