As a young actor starting out, having your name on IMDb is a strong step in establishing yourself in the business. It is not the be all and end all and in time it will happen. If you want to start building your resume on the mothership of all websites for actors, with a little bit of hard work, you can grow your resume on IMDb.
You can shoot a web series, a short film or a documentary with you as the narrator, or upload it to Vimeo or Youtube and then list it on IMDb as a short film. Here is a short film I created in one day – War Memorial. Look for ideas in short stories by well-known novelists (but be careful about copyright issues), look for stories in the newspaper and don’t shy away from cartoons or children books for ideas.