persevere

Suddenly after six weeks of stupid diet and all kinds of naturopathic medicine my gut feels strangely calm.  I am reminded of that old saw "never give up" The last week I was frustrated and irritable because I was making little progress in terms of feeling better. I was ready to give up and go back to my old dietary habits.
  I reckon perseverance has in this case paid off.
      The art of knowing when to never give up and when to throw in the towel