Exercise program for maintaining my weight loss journey

As a 45-year-old woman who's gone from size 24 to 12 with Zotrim, I want to maintain my health and weight loss for the long-term. Here's my current exercise program - I'd love your thoughts on how to optimize it for longevity! Monday: 30 min brisk walking 3 sets of 10 squats 2 sets of 10 push-ups (modified on knees) 3 sets of 10 lunges each leg Wednesday: 30 min swimming 3 sets of 10 bicep curls with light weights 2 sets of 10 tricep dips 3 sets of 30 second planks Friday: 30 min stationary bike 3 sets of 10 leg presses 2 sets of 10 shoulder presses with light weights 3 sets of 20 crunches Tuesday, Thursday, Saturday: 45 min yoga or pilates class Sunday: Rest day I'm focusing on a mix of cardio and strength training. How can I improve this routine to support my continued health and weight maintenance as I age? Any suggestions are appreciated!