Welcome to the "This looks like fun and I want to make a game" club
I've been a member for years and still not released anything yet! (Although that's my own fault, not trying to discourage anyone else!)
You'll find that the readers and commenters here in the programming and dev sub-forum are very supportive.
I strongly support Jofur's advice above: the sheer volume of work required to make any game at all, let alone a complex/visually beautiful/polished game is really significant. So it's better to build up your skills with smaller projects first. And the most important skills are knowing how to control your scope-creep, your need for perfection, and the willpower to *just finish* and release your work.
If you want any help understanding the tools, just make a thread and ask away.
Good luck!