I have BPD, and my emotions overwhelm me constantly. So I often get stuck on one feeling until it passes. Each emotion is intense and through the duration my logical mind forgets that there are other emotions waiting, positive ones.

But I was waiting at the weekend for my lift. I was supposed to go out to a friend's birthday and an other friend was driving me so I could drink a bit and be sociable. The later he was (eventually 2 full hours late by the time he got to my house) the more desperate and intense my negative emotions were.
I was so frustrated I thought I would cry. I was so angry I growled. I became to restless and irritated and it was a big barrel of negativity.
But I automatically self-soothed. I never seem to be able to do that.

I took a deep breath and said out loud, "I'm infuriated being M is late, and that's okay, because my plans are disrupted and this is an inconvenience. But it will be alright."

"I'm upset and frustrated because I have no control over this situation, but it will be resolved soon."

"You're angry because he was inconsiderate about your plans tonight and because he gave no reason for lateness other than laziness even though you stressed the importance of time."

I just talked myself through it. By the time my friend picked me up I was relatively calm and the episode was over.
Does anyone else do this? is there some improvement on this method?
Did anyone make their own way of coping.

I was inspired by this new development and thought I might seek some more tips and advice.