if you have some goofy vision of a thing that you've never seen before, which nobody online seems to have exactly made before, and whose techniques and materials you aren't even quite sure about, just dive in and start making it... the journey will be as cool as the final product
"but why on earth did you buy an old sewing machine and teach yourself how to use it?"
I'm so glad you asked, now that I have some results to share: I'm making a giant inflatable coral reef! For reasons!