It's about being better at acknowledging how people and situations make you feel, where that reaction may have come from. It's a way of reconnecting with that inner child like wonder to bring happiness to the adult version of you,. The second thing is to be messy. Mess is so acceptable in childhood, but not so much in adulthood. Find a way to let yourself step out of the constraints of always needing to be clean and tidy and put together. Hug yourself. Put your arms around yourself and hold them there, squeeze yourself in. It will immediately make you feel better, and it's also a great way to practice self love, as well as healing your inner child two for one.