sanderille, I imagine that it is sometimes difficult when one becomes a new Christian. So much to assimilate.
Welcome to the Christian faith,
and welcome the Catholic Answers
Jesus also had to eat, drink, go to the bathroom…the Divine Son became incarnate, with also meant all these ordinary things were part of His life on earth. As you know, the Jews were particular about cleanliness, like washing hands and utensils and so on, and in a world without running showers and modern plumbing were absent, circumcision was possibly originally a hygiene matter. Circumcision even often occurred amongst non-Jews until more recent times when it is more commonly frowned upon. The Jews made a ceremony of it. The great humility of God-made man…and when born, He wasn’t just a little child reclining in a manger, but for instance, whatever the cloth equivalent of diapers or nappies had to be changed.
Jesus doesn’t pretend to be fully human as well as fully God.
In order to teach us, witness to us, and save us, He takes upon Himself our humanity.
As Saint Paul wrote in his letter to the Hebrews:
"For we do not have a high priest who is unable to sympathize with our weaknesses, but we have one who has been tempted in every way, just as we are–yet was without sin".Hebrews 4:15
And you could find it helpful to read from John’s gospel chapter 1 where His eternal divinity and His human objectives are spoken of in a way that could help understanding also.
God BLESS you!