How difficult it is to start and be successful depends on the person doing it really.

It's way easier than a brick-and-mortar business as far as I am concerned but you need a little cash, know-how (which you get from WA) and be consistent to be successful.

So it comes back to you.

Candy Benn

It is not difficult to start an online business per se.

The success of that business will be in your hands. It will depend on the niche you choose, how well and how often you post articles to your site.

I wish you success.

Derek

This depends on you. How much time you could dedicate to the business
All the best
Rania

It depend on the effort you are willing to put in and patience

If you can read and learn, you can do this. It's not always easy, but if you are diligent, the process works.