Summary of what I learnt:
It's wrong to claim that we are the true church, the true church is the church of God and that has existed long years ago.
1 Corinthians 1:1-2
KJV:Paul called to be an apostle of Jesus Christ through the will of God, and Sosthenes our brother,
KJV:Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called to be saints, with all that in every place call upon the name of Jesus Christ our Lord, both their's and our's:
We are followers and imitators of the true church, following or imitating the true church is not a wrong thing to do.
1 Thessalonians 2:14
KJV:For ye, brethren, became followers of the churches of God which in Judaea are in Christ Jesus: for ye also have suffered like things of your own countrymen, even as they have of the Jews:
The true church is gifted by God the power to do so many things like healing all manner of diseases.
Matthew 10:1
KJV:And when he had called unto him his twelve disciples, he gave them power against unclean spirits, to cast them out, and to heal all manner of sickness and all manner of disease.
The original church preached by God and his apostles is the true church of God.