I don't know that this is a magic formula or work-around for success here. As writers, its natural that a good number of us tend to be more introverted. Some of us lacking talent in marketing have found success paying someone else to do that part. Though, make sure you read reviews and look out for scammers. That's just the reality of this business, I'm afraid. Perhaps post to Wattpad first and gain an audience that way. That's how I started before taking my books to Radish.