If you´ve thinked and you´re not sure that you should create an article, consider requesting feedback at the drawing board, edit an existing article or use an article creation wizard: ۩ - ۩.
When creating an article, avoid the copy-paste or copying the exact information. This may sometimes can even cause problems of copyright violations (I have experienced this). Again, don´t worry for mistakes, just don´t copy. Also, avoid making the article in an informal tone wich adress the reader directly (like posting your view point or usig words like "...is cool", "...you should have...", etc), keeping neutrality. And finally, avoid advertising or promoting anything.
Well, first of all, I´m glad you came into wikipedia and I hope you enjoy helping to develop it. Here you can find a simplified set of most important rules on wikipedia and here is an overview of wikipedia´s five pillars. There's a place where you can also ask any question (you can also go there by just typing WP:? in the search box), but if you find something a little complicated or just prefer to get an easier and more personalized answer, you can always ask me anything (since you´re my adoptee) and I´ll help you. You can also use the sandbox or your own page to test things or build an article (or part of an article) before adding it to main space.