For exercise/gyming i have a couple:
Just GO
Just go, even if you get there and walk, its better than nothing
You know its never as bad as you expect, so go
You will feel better
Its only 45mins out of 24 hours, you can do it
For the love of jesus, just get to the freaking gym!
During exercise when i get tired
Just run for one more song *then pick a 7min song xD*
Ok, now just that song one more time
Just another 100m
Round it off on a nice number (like x.5, x.0 etc) then you can stop
Eating
What are your alternatives?
Do you REALLY want this more than seeing a difference on the scale?
What would your personal trainer/coach/gym buddy/whoever say if you told them you had this as a snack?
And I remember something I think someone's son said on here:
Impossible really is nothing. Even the word has "I'm possible" in it
I really like that