My first suggestion is to get a personal trainer. They are wonderful at teaching you how to use the machines and teaching you correct form. They also know how to push you to the next level. Next, try new things until you find something that you love. For example I joined a gym that lets me take unlimited classes for free. So one day a week I tried a new class (zumba, figure 8, belly dancing, kickboxing, yoga, etc), until I found the classes that I enjoyed. I never imagined that I would love kickboxing and body combat classes, but now they are the highlight of my week.