Helping you understanding the Trinity is a big task. FULLY comprehending exactly how God can be 3 distinct persons yet One God, and wrapping our brains around who God is will always be just beyond our grasp.
Because who wants to serve a God who can be fully understood by our finite brains. How small would that make him!
However, God can still be known by us.
One of the best ways to know God better is to study the Trinity.
It shows us God in action. It reveals how God the Father, God the Son, and God the Holy Spirit work and bring about God’s plan.
And while we can’t ever know and understand God and His work through the Trinity exhaustively, we can truly know God and see the Trinity in action in our own lives as we make an effort and ask Him to reveal himself to us. It takes work. But it’s worth it