I want to write a serial novel

If you observe my articles are all disjointed. Sometimes repetitive too. But I feel like writing a serial novel. There is one fear. How do I protect it against copying? This needs to be thought about. I have to ask someone somewhere to confirm this. It would be fun to serialize a novel on the blog. Has someone already done it? I do not know. I remember when my serial came in a Kannada newspaper - my first - I was thrilled not because it was a thriller. Because it was my first! I used to read each word and enjoy my own writing. Is it wrong? Not that I have written something great.But it is my own writing. The feeling that the Kannada readers' world would taste it. They would be able to comment on it. Now I remember, after the serial was completed, after 5 or 6 days a few letters were published in the newspaper where readers used to write. The words of the readers were really encouraging. Very curious till the end was the common sentence. Then I decided to make it interesting whether I write a thriller or a family drama. I had even planned to write a big book about a 'real' family. May be the family would not have liked if I had done it! But I did not do it. Now I want to make a serial novel without making it easily copyable. is it possible? Does someone read it and send me the answer please?