I like lifting too! However ... I don't like a routine. When I feel like lifting, I like to look up a body part and do it. But I run out of "want to" after 15 or 20 minutes.
Fortunately, that happens a couple of times a week.
I feel pretty good for an old gal. I'm certainly strong enough for my work and for tossing my granddaughter around on a bouncy pad