As per title really...

Let say I have a niche idea. From here I join similar interest groups and get involved with conversations..I get that...but...

My name is Alan. ..do I use my current fb account? Or create a new one specific for my interest..ie crochet man...if it were crochet..

I make a fan page but when I post in a group it doesn't say my fan page name but my real name...

I am lost as to how to post in a group or join a conversation with anything other than my real name....I'd like my post to represent my fan page really.

Any any guidance on something that is probably basic would be appreciated...as I have clearly not got a grasp of it yet