Being a writer is a tough job. You need to be fluid as the water. It would be like one word would flow a thousand thoughts that you can put on into writing and not only that you need to make sure that of course what you are writing would be interesting for the reader.
Anyone could be a writer I believe. It is just in a way of delivering interesting stories to a specific crowd who are interested with the topic. Even though you have found a topic that would be interesting for this specific crowd you still need to learn on how to play tricks with the words and delivery to make them read and watch out for your articles. So here are a few suggestions that you can do so that you can start writing.
First, identify your audience. What do they want to know? What do they want to hear? And what do they want to learn? These are the things that you should contemplate first before creating a topic.
For example, your target audience is your friends and they are really fond of exercising, and then you can write about topics or articles about how to lose weight effectively. If for instance they are fond of computers, then you can write a review about a list of computers that you have checked and canvassed.
Writing is all about giving the right information to the rights people and when you are able to deliver that message to you audience then you are able to successfully communicate and that is a very effective writing.
Second is when you have that topic then you can write a relevant and a high quality content, an article that would be very interesting to read. You also need to check your grammar and spelling. That is very important because it would lose the quality and the readers would not be able to understand what you mean.
Lastly, listen to advices and opinions so that you would get an idea of how well you are writing and how well you are able to deliver your thoughts to other people.