I'll chime in on this about how the gym worked for me. Do both strength training and aerobic exercise; both are good for you, and both will work to keep you healthy. I joined a gym that did CrossFit workouts which combines both styles of exercise, and have been doing so for the last 9 months.
I could never stay motivated at the gym on my own, whereas CrossFit is nice because it's run as a group class, and you typically have a coach that runs you through the exercises. It's a bit more expensive, but it's the only gym that I've ever actually stayed committed to.
As for results, I haven't lost any weight; but I've lost fat and gained a ton of muscle (it was extremely noticeable in my face.) I've also taken 2.5 inches off of my waist.
I could never stay motivated at the gym on my own, whereas CrossFit is nice because it's run as a group class, and you typically have a coach that runs you through the exercises. It's a bit more expensive, but it's the only gym that I've ever actually stayed committed to.
As for results, I haven't lost any weight; but I've lost fat and gained a ton of muscle (it was extremely noticeable in my face.) I've also taken 2.5 inches off of my waist.