סוּר מֵרָע וַעֲשֵׂה טוֹב-Turn away from evil (bad) and do good…
Our first step is too turn away from seeing ourselves as bad! When you stop seeing yourself as bad, stop telling yourself that you can’t, you’re not good enough, etc. you will see the good that is inherently inside giving you the motivation you need to do good. This is on a spiritual level as well as a physical level.
Nowadays one is bombarded with information, diets, health tips, etc. Who knows what is a fact and what is merely a temporary fad? Follow the sage advice of David HaMalech, סוּר מֵרָע וַעֲשֵׂה טוֹב, you don’t need to get fancy, start off with turning away from sugar, refined grains, and partially hydrogenated or fully hydrogenated oils and you will automatically be eating a healthier diet.
As we enter the month of Elul make a little diary by daily writing five different things that you thank Hashem for and three things which you are happy with yourself about. (“I greeted my spouse with a smile even though I was upset.” “I forgave myself for making a mistake.” “I used my time productively.” Etc….) Look at your diet and see if there is one food item that contains refined grains or sugar and see if this this month you can do without… Tell yourself you can and with G-d’s help you will!