I said this in reply to someone on another group talking about working out of a black mood hole:
You are in control of your actions.
You can influence your emotions by your choice of actions.
You can make choices of actions that influence you in itty, bitty positive ways. Consistently choosing small things to influence your mood for good will start to snowball — VERY slowly at first, but it’s like lifting weights. At first you struggle to life ten pounds. By going and trying a little bit consistently, you get stronger and a year later, you’re tossing around 100 lbs like it was nothing. Then people who haven’t tried it get mad at you and say you’re just “naturally strong” and don’t understand what it’s like to find it hard to lift ten pounds.