I often have to push myself to do things. I don't feel very self motivated a lot of the time. I do find, though, that once I've forced myself to do one thing, my motivation goes right up and I feel like doing more.
I don't feel like I've wasted my time when I've done something worth while, like helping a family member with something, or lifting weights for a half hour. It feels good, actually, because I don't end up feeling like I've wasted the whole day, lying around.