Imagine this scenario.
You wake up tomorrow morning to a blinding light in your bedroom. No one else can see it, but you are both drawn to it and have to shield your eyes from it. After a moment, you come to your senses and recognize it's God.
A deep, resonant, baritone voice speaks. It doesn't wait for an invitation into your soul but more kicks the door down and demands your attention.
"Tell me what I've done for you."
If you stumble over your words, you'll be embarrassed. If you can't come up with anything immediately, you feel convicted.
So what do you do when you read the command in Psalm 75.1 and come up empty? "We recount Your wondrous deeds."
A good first step: repent. Tell God you're sorry for not being able to name hundreds of hundreds of things that He's done for you in the past few days.
Second: take some time. Think about the air you're breathing - the amazing work of your body to translate nitrogen-heavy atmosphere into life-giving oxygen. Think about the family you have and the blessings they are. Think about the place you live. The friends you have. The food you get to eat. All of these come from God. All of these are works of His hand. All of these are His wondrous deeds.
Third: say thanks to Him for all of them.
Lastly: commit to rehearse the things God has done for you. Maybe when you fall asleep, you think about how God has blessed you that day or protected you or worked on your behalf. Maybe around the dinner table you and your family talk about a way that God has provided something that day.
"We recount your wondrous deeds." Can you?
But that's just me thinking thoughts...