Hello Flame,
You are not the 1st one with this question, nor will you be the last.
Actually, AGuest is answering your questions quite well, and I would like to encourage you to browse through her many contributions on this site. Even if you might not understand everything, it will enlighten your understanding. I add a few ideas if I may.
The belief system that Christ started, was not centrally organized. A contextual reading of Acts 15, will show you that it was a group of elders of the local congregation of Antiochia, had problems with the teachings from another local congregation, Jerusalem. To sort matters out, a delegation was sent to Jerusalem, where the 2 groups came to the conclusion to solve it. Nothing more, nothing less. Early christians met in local congregations, they had elders which they choose themselves, and did not have pioneers, circuit overseers or anything like it.
The early christians did NOT preach from door-to-door. Christ, Paul and others went to open places like synaguoges and market places. The majority of the christians though, did NEVER engage in any formal way of preaching. The great progress was caused by the message going from mouth-to-mouth publicity, informal preaching if you like. This formula still works best, even nowadays.
The real instructions from Jesus, you find in Matthew 25:34-36:
34 “Then the king will say to those on his right, ‘Come, YOU who have been blessed by my Father, inherit the kingdom prepared for YOU from the founding of the world. 35 For I became hungry and YOU gave me something to eat; I got thirsty and YOU gave me something to drink. I was a stranger and YOU received me hospitably; 36 naked, and YOU clothed me. I fell sick and YOU looked after me. I was in prison and YOU came to me.’
James repeated a similar message in James 1:27: The form of worship that is clean and undefiled from the standpoint of our God and Father is this: to look after orphans and widows in their tribulation, and to keep oneself without spot from the world. How you give this an actual meaning in your life is entirely up to you.
One thing is for sure, you cannot do this fully as a Jehovah's Witness. The constant pushing to preach and to engage in other not very valuable activities will keep you away from what really matters. The Society is constantly bashing other churches for their efforts to help other people, instead of preaching, but this is exactly what Jesus commanded us to do.
If you want to do what the bible says, and you do not want to it on your own, you have to find another group of people that wants to do it too. Whether that is in an existing church or not, is your choice. Most important is that this group of people does not force their dogma and understanding upon you, that you are free to read and understand the bible as it comes to you. This is impossible as long as you are an active Witness. I hope I was able to give you some answers.
Hoffnung