Your content must be well researched. So firstly you need to know the rules, guidelines of Wikipedia. And then you should conduct research not only for your topic but also for the entire creation process. If you want to know how to create your own Wikipedia profile, so you need to do the practice. As practice makes a man perfect so the best way to practice is to start editing Wikipedia pages. That is how you can have a good understanding of the format and writing style of the content. Do you agree with the point?