I love little mantras I can use in moments of weakness when I feel like I CBA to make good choices or do a workout. My favourites are:
Everything you want is outside your comfort zone
(this is one for when I feel like giving up during a workout)
There's nothing wrong with being a bit hungry for an hour or two
(this is one to avoid snacking before a meal, I'm terrible for eating something an hour or so before dinner because I feel like I can't wait when actually I can)
A moment on the lips, a lifetime on the hips (oldie but a goodie, helps me resist biscuits and things being passed round at work which will taste good for about 30s then just leave me wishing I hadn't eaten it for the next hour)
Just do it
(I use the Nike slogan to get myself to do a workout even when I'm not in the mood)
I need more mantras to keep me going and help make healthy eating and exercise habits into a way of life for me: please share yours!