Ok so this isn't for everyone, and it isn't always for me if I'm honest! But sometimes I do really enjoy just taking a step back, pausing and just listening to nothing, watching the world go by!
Sounds a little weird I know, but I used to just walk home from school and sometimes I'd stop, look up at the sky at the clouds going past, breathe and think for a bit.
I also like taking myself out and going to the beach or something, one of my favourite places to go is Brighton, I've only been once but I absolutely loved it. Being sat on the pebbled beach, watching the waves, people having fun on the pier etc.
What makes you happy?