Well, I can tell you my favorite quote.
It's not too late and you are not too old
Even if you are not strong yet, you can build it slowly up. I'm 52 and I worked out online with people who were even older. Start with light weights and start with compound exercises to build up basic strength.
- Dead Lift
- Squats
- Bench Press (or push-ups in the beginning)
Kick yourself and start today. I use kettlebells because I don't want to be a bodybuilder and build big muscles. I want strength, mobility, and endurance. Therefore kettlebells are ideal for functional strength training.