So far it looks like you think God is pleased with multiple baptisms or a series of separate "repentance"...
You say you know what you're talking about and point to preaching as a point of authority....
I am so sorry that you are facing false accusations and I believe this brother in Christ wants to make sure your peace and assurance is coming from Jesus. Not yourself.
3341. metanoia
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Strong's Concordance
metanoia: change of mind, repentance
Original Word: μετάνοια, ας, ἡ
Part of Speech: Noun, Feminine
Transliteration: metanoia
Phonetic Spelling: (met-an'-oy-ah)
Definition: change of mind, repentance
Usage: repentance, a change of mind, change in the inner man.
We repent of unbelief, God changes our inner man.
Ephesians 4
4 There is one body, and one Spirit, even as ye are called in one hope of your calling;
5 One Lord, one faith, one baptism,
6 One God and Father of all, who is above all, and through all, and in you all.
7 But unto every one of us is given grace according to the measure of the gift of Christ
Water baptism is a cerimony and outward showing of what God does for us when we are baptized of the Holy spirit and born again