Before starting your WordPress blog you first know more about some basic things related to blogging field.
Here I will provide one by one
1. Choose Niche
2. Choose a Blogging Platform
3. Pick a Brandable Domain name
4. Find a host
5. Install WordPress
6. Design & Start write content
Those are the six important steps you need to follow. In the next article, I will write separate topics for each of that above topics.