Performing random acts of kindness can improve one's own state when feeling down.

“if you feel like you're having trouble making yourself happy try to make someone else happy and I think that that is the workaround that very often then improves your own state so it's like if you're feeling just awful or depressed or in a funk it's like go get a coffee and pay for the person behind you I mean just exercise some of those random acts of kindness think about someone who has helped you and call them and leave them a voicemail and get them on the phone and thank them for how they've helped you”