>> “His apostles were invested with the power to forgive sins in His name” <<
Just a misunderstanding. The forgiveness of sin was evidenced by the healings, but Revelation makes clear that there were 12, and only 12 apostles, thus none alive today.
That doesn’t mean that there are not men with spiritual gifts today; clearly there are, but the apostleship was for a special time, under special conditions.
Go back and read the Acts of the Apostles.