Jesus is not 2 people. He is 1 person. The Holy Trinity is not: The Father, the human Son, the divine Son, and the Holy Spirit. The Holy Trinity is the Father, the Son, and the Holy Spirit.
Here is a good link on this:
agapebiblestudy.com/documents/HERESIES.htm
here are also misguided professing Christians who believe Mary was the mother only of Jesus the man and should not be called the “Mother of God.” This is the heresy of Nestorianism which was originally spread by Nestorius, a monk of Antioch who became the influential patriarch of Constantinople in 428 AD. Nestorius preached that the man Jesus of Nazareth was not God. He taught that God only dwelt in Jesus as in a temple, that Jesus became God by degrees, and that Jesus was two separate persons within one body. Logically in this interpretation, Nestorius had to deny that Mary is the Mother of God since Nestor believed Jesus was not born divine. He said she should be called Christotokos (Christ bearer), but not Theotokos (God bearer). The doctrine of this heresy was addressed at the Council of Ephesus in 431 AD. The Church pronounced that Christ is only one person. Therefore, Mary is the mother of that person and since that person is God then Mary is indeed the Theotokos and deserves to be called the “Mother of God.” It was from the ruling of this council that “Holy Mary, Mother of God” was added to the “Hail Mary” prayer, affirming St. Elizabeth’s greeting to the Virgin Mary when, inspired by the Holy Spirit (Lk 1:41), she said “Why should I be honored with a visit from the mother of my Lord?” (Lk 1:43), referring to God by the title “Lord.”
To the OP:
Jesus is God. He is literally omnipotent, all-powerful (He can do anything - anything). This is the official teaching of the Church.
Therefore, if you ask:
“Can Jesus do x, y, or z” - the answer is always yes - it is within His power. Unless you are asking if He can make a rock that is too heavy for Him to lift. That is a strange line of logic, but one that people have posited before. I don’t know the answer to that, though I think the answer might be no because He can lift an infinite amount of weight. Or could He make a 4 sided triangle? Well, I guess not, at least not a 3 dimensional one (that I know of, but I’m probably wrong somehow).
Can He go back in time? Certainly - He made time itself. Can He heal you from your past traumas and cleanse your mind and memory from trauma and sin? Definitely - ask Him to cleanse your mind, your intellect, your will, and all that you are, with His precious Blood.
I know He can do this because He did it for me. He can heal you, yes, He is the Holy Healer. In fact - I believe that He does desire to heal you.