Baptism is very much needed to show you have become a changed person , and believe in christ, However it is not a Jewish ritual. It is based on the Jewish ritual of the Mikveh (מקוה), but the Mikveh is quite different.
For example, If you are born into the Jewish religion, you do not need to do the Mikveh ritual. Also, The Mikveh is more than just a conversion rite. It is a used after an illness, before weddings, and after menstuation, among other things.
Christians believe that Jesus is the Savior, and practice baptism for the forgiveness of sins.
Yes. Many notable denominations of the Christian church practice the sanction of baptism. Among them are the Episcopal, Baptist, and Lutheran churches.
Yes he was actually the first one to give christian baptism
That would depend on which faith you are joining. For example, non-Christian faiths don't practice baptism. Some Christian faiths do.
Christian baptism started with the Apostles, and then with them baptizing those who came to believe.
Baptism initiates us into the Christian community.
Christian baptism is approximately 2000 years old.
Baptism is a Christian concept.
When I hear this, or a similar, question asked I hear Angels singing the song "Here We Go Again." No, Christian Baptism is not, and has never been, an occult practice. Jesus Christ, himself, was Baptized and instituted the Sacrament; therefore, it is a "Christian" Practice (see Matthew 28:18-20). Even the author of the Anti-Catholic Bible Roman Catholicism, Loraine Boettner, dogmatically states that Christ instituted the Sacrament of Baptism (p.189).Here we have the classic similis hoc ergo propter hoc (Similar to this...therefore because of this) fallacy. Some ancient occultists and pagans may have had a practice that resembled baptism, somewhere in the timeline of history, but that does not mean that the Sacrament stems from those origins. To say that it does, is to imply that Christ Jesus was somehow involved with the Occult.
Baptism can be for other Christian faiths, not just Catholic. So if you are becoming a Christian, you are baptised.
The sacraments that you are referring to are Christian elements. Given the nature of the celebration, Jewish people do not do this. This is a peculiarly Christian thing and is not found in Judaism.
Jews do not have baptism. It is a Christian observance.