There are several reasons, other than age, why weight loss can be challenging:

remember your body has one goal - protect what is inside, ie organs, brain etc.

1) your body might be "happy" with your weight, and losing more weight is not what your body wants

2)look at what your eating, are you getting all your required nutrients. after menopause, the need for calcium increases. that is usually a big one

3) again looking at what you are eating, many of us have food intolerances, and our body's immune system is working overdrive to deal with those foods. some symptoms include headache or even migraines, but one common symptom is un explained inability to lose weight.

4) it looks like you are doing A LOT of exercise, and i am wondering if you are feeding your body enough for that amount. yes you want to have energy used greater than energy in, but that difference cannot be too big, or your body might start to believe you are starving. and keep weight on

5) now looking at your weight workout. are you practicing progressive overload, that means, are you constantly challenging your body, or are you staying with the same sets, reps and weight all the time. usually you would want to change your workout every 8-12 weeks, which is about how long muscles take to adapt.

anyway hopefully this gives you some food for thought (pardon the pun)

Keep Smiling

Hannah