The only problem here is that life will never go exactly how you want or planned it to.
You want your game idea to grow into a source of income, however nothing comes for free. Where will you get the money to do the things you want to do? Using Kickstarter for example will only work if you have already put in a large amount of work on the game to sell the idea, and there is no garauntee others will even like the idea in the first place.
Having the skills/education required to work in the industry is well worth your time, as boring as it might seem, you need to have something to fall back on when/if your plan of starting your own company fails, or needs to be put on hold for some time.
“Never burn a bridge you intend to cross.” is how you should think of situation, even if it’s never used it is valuable to have further education. 