Just make something, if you want to you should force yourself. Inspiration won’t usually strike before you are creating, but during the process. Even if it comes from way outside, you’ll probably only figure out how to channel it when you’re already in the middle of something. Seek the experience of making, not having finished products— and so once you've begun, you’ve already accomplished it, you’re creating something (i.e. being creative). You form a habit and things get better and you inspire yourself.
unless you once had a divine muse that has since passed you by, then maybe you’re out of luck