I know when you join it may be confusing an you may not know where everyone is posting but seriously mostly everyone is posting in the chatterbox but you can post where your topic fits. Also, when you join don't forget to:

Post your birthday in the birthday thread

Introduce yourself in the Introduce yourself subforum

And check the charity/quests forum

Don't be afraid to voice your suggestions to help make the family better

In addition to that please make sure you have actually told me who you want to be or I will just add you as a family friend