I hope you start to feel better soon, xRavenx.

I'm not sure if this would help, but when I'm in a mental state like you describe, I find it helpful to do a short little (and easy) project that requires some amount of attention. For me, that's most often cooking or baking something. Other times arranging flowers or tending to house plants or outdoor garden(s). I imagine others may pick a quick to finish craft. Could even be tidying up a house/flat or arranging books, or the like.