NO excuse.
I grew into a fatass, because I quit working out, quit eating healthy, and starting eating all the junk food I could find.
I did it, I own it.
Then I made the conscious decision to change. I didn't like that life anymore. So, I did. I'm still a work in progress and I do sometimes struggle with my sweet tooth, but every time I say 'no' to a sugary snack I don't need, I get that much closer to my goal.
No explanations and NO excuses. Either do it or don't do it and right now, I'm doing it.