Can you create content around a subject you have an interest or can talk about? Maybe you just want to get into a profitable niche? Only starting and keep going gets you the results. If you tried before and can't decide if it can be profitable, then you have to admit you didn't try that many solutions to the problem. I find that blogging is more profitable the more blogs I build and the better quality articles that keep getting posted on them.
Other bloggers find this true too. But at the same time, there are many people who complain of a lack of results in short periods and don't think of their websites as long-lasting income streams. They just want a quick buck and minimum effort. This keeps you at the bottom of the food chain, where you won't even get scraps, as so many people want to make huge profits from their first trip into blogging.
We haven't entered the molecular age yet. We are still in the information age, so there is plenty to read and write for people who follow subjects.