Explain god father son and holy spirit?

I can only explain this to the ability God has granted me to understand the scriptures and my heart. All praise be to Him.

At the head is God. All glory be to him as the creator.

Next is the Son Jesus Christ. He came to earth as the human personification of God to die for our sins so that through Him we might be saved. He is the Son of Man but he is also wholly/holy God. I know that is a toughy but we believe by faith not by sight. Remember we're dealing with God here. His ways our not our ways and His thoughts are not our thoughts.

Thirdly, we have the Holy Spirit. The Holy Spirit comes to dwell within each of us after we accept Christ. It is effectively God living within us. The Holy Spirit gives us the power, drive, courage to do what we would not be able to do on our own. (such as typing this answer or understanding it) This make sense?

I am just a poor lay man and lowly bond servant of the Lord. Perhaps there is someone with a masters in theology that could offer a more concise explanation?