I am interested in what brand of satanism you are a high believer in?
Most satanists do not worship satan, merely honour and work with him. Others don't believe in anything at all.
According to your profile you are under 18 and therefore it is very unlikely that you will be bale to set up an organisation to gather a group of members in an offline state, however I wish you luck.
Also according to your profile you wish to open the gates of hell, now if we ignore the possibility that the mythos of underworld realms refer to the unconscious mind, how do you entail to do this?
What are your practices, what are your rituals and what are your own personal beliefs?
This is all information one must state openly before they can see if others feel the same way they do and want the same ends.