Welcome to Christian Chat, Gracelynne4me. It’s hard to explain. It seems you’ve already figured out how to start a thread. I never go to the chat rooms so I can’t help you there. My favorite forums are this forum, the Bible Discussion Forum, the Miscellaneous Forum, the Prayer Requests Forum, the Christian Family Forum, and the Suggestions Forum.
If you click the Settings button in the upper right of the screen, it will take you to all the threads that you’ve posted on that have new posts.
If you want to respond to another person’s post, click the “Reply with Quote” button in the lower right portion of the post. Then they will know you are talking to them.