The more pride you have in a particular aspect of your identity, the more motivated you will be to maintain the habits associated with it. If you’re proud of how your hair looks, you’ll develop all sorts of habits to care for and maintain it. If you’re proud of the size of your biceps, you’ll make sure you never skip an upper-body workout. If you’re proud of the scarves you knit, you’ll be more likely to spend hours knitting each week. Once your pride gets involved, you’ll fight tooth and nail to maintain your habits.