BELIEVE
REPENT
BE BAPTIZED
AWAIT THE SPIRIT
Three of the four require a conscious awareness and decision by YOU personally. If the conscious decision was not there as a child, how then can it be valid?
If it is in your heart to do it, do it. And while you are at it, do it right - Full submersion in running water.
Sad.
At a Catholic Baptism for an adult, the person already believes, all the sins of the adult’s past life are forgiven as they are baptized. And they don’t have to wait for the Holy Spirit. They are baptized “In the name of the Father, and of the Son and of the Holy Spirit.”