You wrote:
“So, going by your statement, who is in this church?”
Those who are baptized - as commanded by Christ and the Apostles - are those in the Church. Many are validly baptized, but later reject the teachings of Christ and choose novelties over that which Christ and the Church have always taught.
“I personally do not belong to a religion, I do whoever belong to the Body Of Christ.”
I have no reason to take your claim seriously. If you have no religion, then you cannot be a Christian since Christianity is a religion. You also cannot be a member of the Body of Christ if you are not a Christian. I suggest that you use standard Christian terms in the standard Christian way if you’re going to discuss standard Christian topics.
I am a Christian, a member of the Body of Christ, it is simple.
I am sorry you do not understand that.