These are my thoughts on how to and how not to.
What to do.
First, ask yourself why?
There are lots of clans already out there. What would cause someone to join yours, potentially leave a clan they have already become a member of? What is it about this clan you want to create is so special others will want to be members of it?
Second, can you afford it?
You will need a website with quality content, a forum so your members can exchange ideas and converse. This incurs hosting costs and on going expense. Any clan worth a salt will have it's own server. Again incurring hosting costs, on going maintenance and a considerable amount of time administering it. All of this takes time and great deal of it not to mention some knowledge and expertise. My estimate would land around $2500 annual expense and several hundreds of hours in time.
Third, what are your goals and what are the goals/ideals of this clan you wish to create?
What not to do.
Go on a clans website asking for advice on how to start a clan. Think about it. If you intended to open a restaurant would you really go the an other restaurant for advice on how to compete with them for customers? Good chance you will get bad advice or simply told to piss off. LOL
I think its wonderful you enjoy the game so much that you want to do more than just play. It is admirable but to grow a successful clan takes a lot more than love of the game. It is hard work, requires dedication, the help and support of its members by way of expertise, financial support and the dedication of core members for it to be a success. I am sure you would be very surprised to know the number of people that work behind the scenes here at VG keeping the place up to date with content, maintaining the website and server(s). There are teams of people who look after licensing, maintenance of our forums, discord and games servers not to mention the number of game admins that give up their time ensuring the community has a quality server filled with like minded players. ( keeping the trolls and disruptive types out )
Lots of clans come and go with few lasting very long when it becomes clear a clan is a lot more work than just getting a bunch of people together in one place.
Hope this helps.
Skiddles