Who do you think should have been the most thankful people in the history of mankind?
My answer would be Adam and Eve!
After all, they lived in Paradise!
But as you are painfully aware, they lost their attitude of gratitude. Understanding how it happened is crucial to understanding why you struggle with ingratitude. Even though history has changed, human nature has not!
Let me first make this basic statement - gratitude is the foundational attitude. Thankfulness is the result of believing truth and ingratitude results from being deceived by a lie.
The lie Adam and Eve allowed to deceive them was the notion that contentment is "out there somewhere"!
Imagine being able to walk with God IN PERSON every day in a perfect place like Eden! What could be better than that? No one has ever been more blessed than these two!
Do you think the God Who created Adam and then gave him Eve when He realized Adam had a need for human companionship would have denied Adam anything else he desired?
Of course He would have!
So how did they buy into this lie?
Apparently, they lost sight of the truth that God was their source and their substance. They forgot they were blessed and believed for less.
Haven't you found that when you forget you are blessed you settle for less? That has been my experience and it seems to be the case for the First Couple.
Also, they allowed themselves to doubt the character of God when the serpent impugned His character. When they allowed themselves to doubt God they were prone to believe the lie.
Learn from Adam and Eve!
Doubting God leads to dissatisfaction and dissatisfaction breeds ingratitude and ingratitude opens you up to being deceived.
If you are a child of God you are blessed! Desire more of Him. Don't settle for less!