You keep on insisting that the object of undergoing water baptism is a prerequisite to obtain forgiveness of sins. It is not. For that, God only wants one to confess, repent, and trust in Christ's payment for them on the Cross. I alrady told you what this baptism is about and your view of it is defective. If you want to know more about it,
go here. A complete lesson about the Baptism Unto Discipleship is presented there.
Otherwise, if you are not teachable, I can't help you more than I already have.