What to blog about.

Have you studied keywords? And if so how do you do it? I have to outrank my competition. How do I even have competition and if so who are they? How do they outrank for my keywords? They want to rank for certain keywords? Why?.................

How do I know what keywords to rank for. Why does anyone want to read a blog about keywords that rank?

Is it supposed to be informative. What so special about keywords? I don't do any keyword research. All I do is blog about the most random crap I can think of.

What do keywords really do. I'm supposed to see what keywords are getting traffic and then try to blog about those keywords, inserting the keywords all throughout the post to make it rank. I don't get it. Maybe the spaces are empty and you need to rank for keywords are searching for related to your offline business. I get that. If they are looking for menu and then you might need to rank something for menu. I don't really a know. I will do more research. I will study keywords more. I don't even have a niche. All I do is post random blog posts. Maybe I need to target a niche.