I hear relaxing flute music, ie. just instrumental music. I would post a link to such a YT video, but the mod could wrongly interpret it as doing an "unpaid advertisement" as he recently did in another laughable case...
I like to spend some time with myself in silence. Sometimes I prefer to do meditation as it helps me to shut down all the noise and clear my mind, or at other times I just go for a long walk. I don’t indulge in watching videos or movies, in fact I don’t even use my phone for 30 minutes after I am done for the day. This is my way to relax myself.
You can start with 4-5 minutes initially and then increase the time gradually. No need to force things.