I think Construct can make platformers with no code out of the box. You might still need to learn to code to do everything you want, but you'll probably pick up some of the basic concepts of coding even just doing doing it visually. In the meantime, you could get a feel for just the fundamentals of 2D platformers themselves, which is probably a good idea before launching into your larger vision. But yeah, when you're just not feeling it, it can be hard.