Dear Emarie,
lol sike that's Amerie.
You will not get particular advice on joining AKA on this board. However, your question boils down to the essentials of joining any NPHC organization:
You have to be able to make friends with strangers.
But first, you should probably ask the AKA in your family to introduce you to other AKAs. It would be nice to have more family friends at your disposal to ask questions of rather than coming to a message board, right?
After that, you really need to work on yourself, build your confidence, and get out there and meet the members of the chapter. They are ultimately the people who will be able to answer your questions.
Don't befriend them as a means to an end. Befriend them because they are nice people that you want to be around.
How do you do that? Well, we can't tell you how to make friends - that's for you to figure out. But there are some strategies on this website which might be helpful to you:
http://www.wikihow.com/Make-Friends
Good luck!