It’s great you made it!
So everything is ready, you can start blogging anytime you wish. I would love to go through this entire process with you, however, that is unlikely going to happen as there are far too many components to this thing. I recommend you look up some tutorials online regarding blogging with WordPress, It is quite simple; however, does require a bit of training. Here is a list of tutorials that I think you will find helpful, good luck!
If you still have any questions and concerns, feel free to ask me, I would do what I can to explain them to you.