Don't be anxious. You have made a great decision and there is nothing but positive vibes for you here. What you will find is that everyone here is on your side, rooting for your success and there will be lots of help if you need it, so just ask.
We all had to start somewhere so that's completely normal. In a few days you'll be in the swing of it here and it will become your second home....and family.
Sending the very best wishes to you. All is well. ;) Gail