Oh, darling, it's all right! Once you get the hang of it, this place is very easy to get around! Well, first of all, make sure sure you understand the rules to avoid getting into any trouble. Once you've done that, you may start posting. Unlike Twitter, you can post as many words as you want, and you get a type of currency called TBT Bells, which can be exchanged for many different things, namely Animal Crossing stuff, and anything listed in the Shop. You can't really post on your page, as that little feature is there for publicly messaging people. Go to someone's profile and you'll see messages from other people. To respond, simply go to the profile of the person who messaged you, and respond through that. There are a lot of fun things to do here, and if you need help with anything, feel free to ask!