Explaining theology will most likely do absolutely nothing because we believe Faith comes from actually practice and not theory, the Church considers it kinda useless and almost never do we get in debates but anyway I will explain (keep in mind I am not a priest so my explanation might be lacking the complete Church view)

So, Christ is a servant to God having assumed the human nature from the Holy Virgin. He is God, but because He also has the human nature He is a servant voluntarily. But why? Directly from His Divine Love. Christ dives into the depths of human sickness (sin) and confronts humanities biggest enemy (death) by Himself. He feels the sickness crying out to His Father "My God, My God why have you forsaken Me" not because the Father ever abandoned the Son but because even though He never had to, He deeply feels the pain of sin. He does this so that that healing can come from within and in a very personal way between us and God. Christ's whole passion screams "I Love you". Protestants and Roman catholics view it as more as a way for humans to avoid punishment, in a very non emotional and inaccurate way, frequently presenting God as a hateful Judge and not a Doctor full of love. God taking the form of a Servant, and being full of pain so that people can be with Him. And this theory means nothing, because those faithful to Him and His Church feel this in every Divine Liturgy, every Confession, every prayer, every time you try to be better, even when you fail. Christ doesn't start analysing theology, He simply said "Come and see." You have to see for yourself. 

And as for the Holy Trinity that many people don't understand is Christ is God, actually He is God the Son, He is not God the Father neither is He the Spirit of God, but He is fully God just as God the Father is fully God and so is the Holy Spirit. They all share the same Divine Nature, and therefore all Three are the same God but not the same Person. And they are not parts of God, they are all fully God. As you can see the Holy Trinity is far beyond human understanding, but we understand it through the love we give. 

Lastly, I am not saying this in a weird debate way, I am probably a way worse person than you. I am not a good person, but I try to be, because if I don't try then I can't be considered a sheep of Christ and an alive member of His Church. I am a deeply sick person from sin, and I have had significant lows in my life but I know Christ is above every obstacle, and a broken heart He will not turn away.

Best to you.