Create A Forum - Support Forums

Hello,
I just created a forum, changed some settings, logged out to see what it looks like for guests then when i tried to log back in, it says my password is wrong, even though im sure it's correct. When i press "forgot pass?" and enter my email, it gives an error... In the email i received, there's also no "password: ...." under the 'Your admin account details:', it only shows Username: BeerTanK. i'm very confused, could someone help me?
Also, I wanted to ask, how can i make it so that guests can't see any topics or topic names? I dont want guests to be able to see anything. I modified the guests permissions to 0 and still they're able to view and read topics.
Thank you

Edit: oh and also, if i view my forum as a guest and click on BeerTanK because i had posted a topic, so i can click on BeerTanK to see the profile, it gives and error: The user whose profile you are trying to view does not exist.