Look at yourself in a mirror and SMILE! While standing there go ahead and give yourself some praises or even sing a song out loud. You’ll be creating natural happy endorphins.
I remember as an innocent young child how I used to love looking at myself in the mirror and at a long length mirror I’d sing songs with a hair brush, smiling and practice standing tall, standing straight, dancing, and doing the shimmy lol! Oh what a wonderful time I would have.