How to motivate yourself to lose weight?

I feel like it is holding me back in terms of my health - I can't do push-ups and other exercises because my body is too heavy, what can I do to motivate myself to lose weight? I mean I don't think that it will matter since I will die sooner or later anyway so I just give up about it to enjoy life, are there any true stories about how it changed your life? I am not obese.

by Jeff via TBN