You are thinking of prophecy as foretelling events in the future. Sure, Jesus did a lot of that, but I don’t think that is the key to his prayer, or our prayer. Most often when Jesus prayed, he prayed in petition to the Father. Look at the Lord’s Prayer, his prayers at the Last Supper, then in the garden of Gethsemane, then on the cross.
By the way, being a prophet or being prophetic means much more than foretelling the future. Prophets in the Old Testament, plus John the Baptist in the New Testament, called upon God’s people to repent. They spoke of misdeeds committed in the past. They spoke of events and difficulties in their time. They taught, and scolded, and advised. Of the future, they warned of God’s wrath and punishment, but more often they promised God’s mercy.
I see prophets not as fortune tellers, but as men who first of all lived in holiness, then discerned or received truths from God, and finally communicated those truths to the people.
We can do that too. We can be like prophets by cultivating our own faith and holiness with God’s help, living righteously, learning about God and his kingdom, and then sharing our faith and sharing what we know with those around us. We can share by speaking or writing. We can share quietly by our good example.
Getting back to your topic, “Praying as Jesus prayed,” we can also prophetically share God’s goodness by praying for others as Jesus prayed. He prayed for his disciples, he prayed for those who crucified him, and he prayed for us. Let us pray like that.