It's not that I'm breaking up the game, I have an idea to use several mechanics in it differently and I also heard that it's best to make several small games before you make a new one, but I'm not certain you guys are more experienced at this.
It's true that I'm not an experienced game dev, but I have been on this platform a while as an artist and have seen what works and what doesn't work. That said, it sounds like you already have your heart set on a plan, so best of luck in your endeavors : )