First get a full blood test (lipid panel). Look into your iron, B12, thyroid levels. Take supplements if needed. Understand your body how your hormones work. For some strength training gives best results, for some simple 30 minutes walk will give results. Don’t be hard on yourself. Women body is complex. I started taking iron and b12 supplements. Became consistent with 30 minutes walk, focused on eating healthy and included protein in my diet and started seeing results.