t change your current workouts, but add that strength training--look up tutorials on youtube on squats, lunges,
biceps curls, tricep kickbacks, back rows, (female) pushups,
chest presses, planks, crunches, etc., and buy some resistance bands and two 8lb weights to start. Don't worry about getting bulky--it's pretty much impossible for women to get bulky from strength training, especially the older we get. Good luck with everything!