First things first: find out what type of content you would like to put out there.
It can be anything you enjoy or are good at- video game streaming, prank videos, tutorial videos, etc. The important thing to focus on when becoming a successful Youtuber is to stay motivated and don't get discouraged.
Nowadays everyone wants to be a successful youtuber so there are a lot of people you're competing with in this industry. You want to make sure you identify your target audience and go after them strategically.
Best of luck in your endeavors!
Matthew recommends the following next steps:
YouTube is basically a site for entertainment, selling things and and teaching people how to do things. In order to be successful at YouTube you must learn to provide videos that are valuable to you audience. Entertain them or show them how to do something cool.
Charles recommends the following next steps: