I'm not at all for the gym, except if I had a significant other who was fond of it or we both decided to exercise together.
My belief is the keep it simple and fun type. If you aren't willing to do something as simple as jogging or taking a walk, then you've got issues. You don't have to be in the gym to achieve this. And in that case, we know where those foods you eat out everyday is going. Take a simple walk or jog before you worry about motivation to go to the gym (perhaps to lift weights). No one can drive you to go to the gym, except maybe a persistent significant other or family members or if you perceived it as a place to take a break from a troubled household. And from what I read earlier, your significant other doesn't reside with you.