Obviously, don't try to do much at once :) But as a woman in your forties, resistance training is highly recommended! It's a great way to ensure functional fitness, and it's the best protection against developing osteoporosis as we head into peri-menopause and beyond.
So, if you are able to add that in, it will definitely be worthwhile.
No. I agree with the comment about the electoral system and gerrymandering as fundamental issues. And the current administration does not respect the judiciary branch, that much is clear, and their actions are completely undermining the supposed divisions of power, without which there is no democracy.