People who start to blog always thing of making money which tends them toward failure. In my opinion bloggers should choose the topic which interests them. They don’t think about making money. It’s about knowledge, try to learn more and don’t think about money stuff. There are many top blog topics to make money online but you can get success only with the topic you like to write on. Try to choose your topic for the blog. Making money is very easy, don’t think about it much.
I know many personal finance writers with blogs that track the financial mess they got themselves into. They don't have financial degrees, but they are doing very well for themselves and help many people with their experiences. Many times, readers just want to hear from you, follow a real person's journey, read about how a real person made it through a problem, and so on. This is a great example of why degrees are not always needed.
Be aware that many blog hosting services only allow their proprietary contextual ad service, and may shut down your blog if you use one not made by the host company. If you are hosting your own blog, you should research contextual ad services and choose one that shows appropriate ads. Some allow pornography or other ads that may not be suitable for your blog.
When an up-and-coming band auditions to be an opening act, do you think the more famous band cares where they have played? Not really. All they care about is the strength of the audition. If the up-and-coming band is good, they get the gig. If they suck, it doesn’t matter where they played or how good everyone else says they are, they get a polite no.
Write content. I like to write an article from beginning to end with no breaks. It may take me an hour to write an article or I may be at it all day. Sometimes, content does span a few days, but for the most part, I like to finish a piece of content in one sitting. I then hand over the content to my editor to fix anything from grammar, punctuation, to the general flow of the article. The only thing she doesn't edit is my monthly income report.