We are all very different and pproach this from different angles. Sarah gave you great advice.
Another viewpoint: I'm older and medicated hypothyroid. I've been doing this or. Very long time but this year am again restricting my carbs. They used to be around 50 in maintenance. 1200 calories
This year, I keep calories under 1200, carbs under 25. Walk 30-60 minutes a day, Pilates reformer machine 4x a week. I can barely get the scale to budge with this. I'm doing Atkins '72. Really basic plan.
You'll have to be your own best experiment. Pick a plan and stik to it. Give your body a chance to become a Fat burner. You'll do great.
There is lots of support here.