They're major error that I see bloggers make all the time.
I’ve had make the same error in the past.
That problem is choosing the wrong niche for your blog.
There are various reasons why a particular niche or topic could be the wrong one.
It may be that you’re not passionate enough, you don’t know enough about it or it’s just too difficult to make money in that sector (or you don’t know how).
What usually happens is people spend or just invest an insane amount of time blogging in the wrong niche.
Then later they realise that they have completely wasted their time.
Here I am going to show you some important questions you need to ask about the niche that you’re blogging in right now (or thinking of blogging in) along with a few ideas to help you pick the perfect niche or topic area for your blog.

http://myworldexpert..com/2018/06/how-to-choose-perfect-niche-for-your.html

Hi

nice read here: http://www.techtuti.com/category/niche-blogging-nigeria/

regards
HK