Only peace counts.
The way to get peace in my mind is to stop all thoughts that are not peaceful, or – at the very least – let them run out while I take a step back and say to myself: “As soon as this godawful thought is finished, I’m going to think of something joyful – which gives me energy.”
And when there are protests, all I need to say to myself is: “No problem, I can get back to worrying and berating myself any moment and it is perfectly permissible. I just need to think about this little joyful thing first, which I just found out I want to think about.”
And when I have, it all becomes a whole lot easier.