You found a great place to find lots of advice. Mine would be to take your time, have a good look around, and read! Learn. Knowledge is power. You could start by reading this thread:
So not just the first post, but all! After that you could do a first check in in the daily check in thread (duh), or use the search function to look for specific ‘how to’ topics. Welcome again, and all success friend, together we can fo this!