“You didn’t choose Me, Jesus said, I chose you! I appointed you to go and produce lasting fruit!” (See John 15:16)
So, if Jesus chose you, you will produce the fruits of a loving, joyful, tenderhearted, merciful, kind, humble, faithful, gentle, self-controlled, and patient person, that will last! You will make allowance for other people’s faults, and forgive anyone who offends you! (See Colossians 3:12-14, Galatians 5:22-23)
If Jesus does not choose you, then even if you consider yourself to be a Christian, you will not be able to walk in the above mentioned fruits of the Holy Spirit! You may try, but it will never last, because your true sinful nature will always be exposed!