Hi there! Here you will hopefully find all the information you are after. As more questions come in I will add the answers here.
What Is Bullet Journaling?
The best place to start is over at the official Bullet Journal site and I highly recommend you watch the video by Ryder Carroll.
How To Start A Blog Or What Do You Use?
Please see my post on how to set up a self-hosted WordPress blog.
What Products Do You Use?