Originally Posted by Alcoremortis
But more seriously, not to squash your dreams or anything, but you really should get more experience before diving headlong into this.
This very much. Even Notch began working for someone else before he created Minecraft.
Only a few can manage to create a good game on their first try. In fact, the only one I manage to think of is Dave Gilbert, founder of WadjetEye Games. And he started making various freeware adventure games in Adventure Game Studio.
EDIT: Correction, Dave Gilbert actually worked in a team for a contest before he made The Shivah.