Not OP and I can’t speak for the entire human population but for me it was changing the relationship I have with myself.

Make a mistake? No big deal it’ll be better next time. Learn from it rather than beat myself up for it.

Hit that red traffic light? Time for self contemplation and putting the heated seats on rather than being pissed off I’m delayed 30 seconds.

Get an email that triggers my threat response? Take a breath and think about who I have around me who can help rather than take it all on myself.

Have a read of learned optimism. Great book.

Get therapy. Hit the gym. Go for walks. Brush your teeth for 2 mins. Moisturise. Show yourself as much self care as you can.