For calming down, I like lyric-less music (e.g., classical music, space music, slow electronica) or lyric-less sounds (e.g., rainforest, beach, etc.). I find that if I focus too much on the lyrics of something, I can get "too into it" and feel more revved up, even if the lyrics, tempo, etc. would normally make it relaxing.

I just log onto Spotify and search "space music." It's kinda trippy, though. lol. But electronica is nice as well.

But yeah, try lyric-less stuff and focus on the instrumentals. See what it does for you.