Mine is either Guaranteed by Eddie Vedder, or Little Wing by Stevie Ray Vaughan (Jimi Hendrix cover)

Watch you Bleed, Five Finger Death Punch.
Crucible, Miracle of Sound
Fareoh, In My Head

Don't have a song that helps with stress but I like to sing Seether - I'm Fine Again.

Right now for me that song is Drown by Bring Me the Horizon.

I Want to Make the World Turn Around by The Steve Miller Band

Yell, by Ikimono Gakari
If I Could Fly by Helloween
Why Worry, by Set It Off
and most of the songs by a Spaniard group called WarCry.

Cecilia and the Satellite by Andrew McMahon
any of Queen's songs (particularly Bohemian Rhapsody)

Keep it mello by Marshmello is a fuckin amazing song

Cherry wine by hozier as also incredible. It sounds so peaceful, yet the lyrics tell another story.