Baptism does not save you, nor does it help to save you. It is simply a picture of your salvation. Although baptism has no part in your salvation, it is an act of obedience to Christ's command. Baptism is a public testimony that you have decided to follow Christ. It is a visible means of expressing what has already happened to you at some time prior to your baptism.
Salvation is an inner, spiritual act.
Baptism is an outward, physical way for you to testify to it. It is a picture of your death to sin, and rising to a new life in Christ. Baptism should be done soon after your salvation since it is your opportunity to give a public testimony. The New Testament was originally written in the Greek language. There were words in the Greek language meaning to sprinkle or pour, but they are never used in reference to baptism.