I find that a lot of people think, “I’ll lose the weight, and then I can do…” They rarely acknowledge the fact that once you lose the weight, you have to keep it off. That means keeping up with a healthy diet and exercise. This is the main reason that “diets” like Jenny Craig or Atkins don’t work for very long (unless you want to keep eating prepared frozen meals or a ridiculous amount of fat and meat).

I think that the answer is finding the things that you are willing and able to do for the rest of your life. While looking for ideas on how to finally manage to workout in the mornings, I found this article on how to add habits to your life. Some excerpts:

To create a new habit there a only a few steps and these are steps we all
possess the firepower to do.
1. You have to decide on what you want to be a habit. It is important that you be as specific as possible. A habit of drinking more water is problematic whereas a habit of drinking 6 glasses a day is easier to install.
2. You have to set up triggers to help you remember the action at the time you want to do it.
3. Once you have remembered you have to be able to motivate yourself to act.