Hello my friend
You shared a while lot with us my friend. Gratitude goes beyond saying thank you, it goes as far as acting it. Gratitude as you rightly expressed can lead us to the peak of life, which we all anticipate to be. Responding immediately to parents in gratitude shows value and character as a personality which I have duly learnt too. Acknowledging someone's help or act of kindness indeed makes them feel better. Appreciation must be shown to every individual that does a special deed for you. Success in the challenge my dear friend.