My advice for a healthy life is to get out and be active. Think of it as investing in what I call a "health pension" -- investment in your health now for the years ahead. It could be the best thing you can do for your future.
You are on this planet to do amazing things, and I honestly believe that lifting weights can help you do those things better. Happy and healthy people have a better chance to live with confidence and contribute value to the world than anyone else. Don't take that for granted.
I know it is hard to stay committed to any behavior change like exercising daily. I also know how much better you'll feel if you exercise, stay fit, and eat right. Try to think of exercise as movement rather than a strict regimen.