There's a difference between an apostle of Jesus and a disciple of Jesus in modern English. An apostle can mean just a follower of the person, whereas a disciple typically refers to a follower who had a close personal relationship with the person, i.e. one of the twelve. I don't know whether that same distinction holds in the original language, but if it does, Paul calling himself an apostle doesn't necessarily support your point.
Mountain-high though the difficulties appear, terrible and gloomy though all things seem, they are but Mâyâ.
Fear not — it is banished. Crush it, and it vanishes. Stamp upon it, and it dies.
Vivekananda
Fear not — it is banished. Crush it, and it vanishes. Stamp upon it, and it dies.
Vivekananda