Or, try varying the activities when you're exercising alone. The enthusiasm is really high when you first start out, but after a couple of weeks the determination to keep going really gets lost. Start slow and then gradually increase your activity level. Many different programs and activities look good to you. It's really hard to settle on just one so you often change programs and activities and end up inactive too much in between.
Real fitness results from a consistent effort.
Gadgets, books, magazines and equipment are fascinating to you. Information is great, but don't forget to move.