I support you here, because it is faith, not works, that pleases God. (See this in Romans 4).
In your case, infant baptism has produced a faith that gives you authority to condemn legalist accusers, such as St Paul in Galatians 5:2.
Although it has produced value for you, infant baptism is unorthodox, having been introduced by the church and not originating with Jesus or the twelve. There is nothing leading to it in scripture. In all ways, it is rooted in a works-based philosophy. Yet, many do receive a useful faith from the testimony of it through their childhood.
Baptism is symbolic of death and resurrection though - being born again. An infant cannot perform that contrition because he has not yet walked in the darkness in order to receive conviction for sin.
Baptism originally is for someone who comes to receive conviction through the gospel and decides to lay down his life of sin and then to live a new life of repentance and faith because has comprehended the gravity of sin. St Peter describes that "baptism now saves you not by the physical washing away of dirt, but the pledge of a clear conscience". 1 Peter 3:21
It is after all, only an outward act of an inward commitment. A covenant. You could consider the covenant to gain more depth of knowledge for the significance of baptism. This booklet is good for painting that picture:
www.adonai-reigns.life/the-gospel