Figuring out how the forum works takes a little time. Fortunately most of it is intuitively laid out - and INFJ's being as intuitive as we are, I think you will find that after a little trial and error, you'll be right at ease with the controls.
One nice thing about this forum is that people are genrally very polite. That said, there are some very cheeky members, but all are very well meaning.