Being strong and fighting through adversity surely is a sign of strength and dedication.
That being said, sometimes we tend to fight adversity out of anger and resentment. When we hold on to our anger and resentment, it stays with us and creates negativity within us. This negativity will continue to fester and grow. Eventually it has the ability to consume us and stop us from living a happy and joyful life.
As hard as it may seem at the time, letting go of this anger and resentment and moving on is the healthiest choice you can make. You will feel a burden lifted off of you and will be free to make good choices that will lead you down a path that will create positive results for you.