First, we would encourage you to carefully study the instances of baptism in the New Testament, noting carefully who was baptized and the nature of their personal faith. We are convinced these passages clearly support the baptism of believers after their personal profession of faith.
If you were baptized as an infant, we would suggest that you should be baptized again as an adult, as your infant baptism was a symbol of your parents’ faith, not your own. In so doing, we would also encourage you to honor your parents and to express thankfulness for their desire for you to have faith in Christ.
If you were previously baptized by personal choice, but later have come to the conclusion that you were not truly born again when you were first baptized, we think that is an answer that should be approached carefully and with wise counsel.