I have created the playlists in my SPotify account, if you want to listen to the songs, here are by section: UPLIFTING PLAYLIST BEUTIFUL DAY PLAYLIST HAPPY MIX PLAYLIST ELATED PLAYLIST
Well, when I saw it was about Happiness, the very first song that jumped into my head was the gospel song "Oh Happy Day". You just can't sit still when you hear this!!! Here it is on You Tube by the original writer and artist Edwin Hawkins: and here's my layout: