I find super interesting that some "feelings" seem to be floating and we simply convey them... I'd be happy to read your poem. I've dealt with sleep disorders since early age so it's also a recurrent topic for me. Blessings. I always use my own photographies but there are sites with stock photos like pixabay, still I recommend that you pick the phone and there are some free apps like "Seed" that can easily turn a phone pic into something artistic, there's no need for fancy, a flower, a naked branch, a cloud, everything can be poetic and conveying if looked through the right eye even if you're not a professional photographer. And maybe you'll find a new hobby there too