So yeah. I'm dealing with this issue too, bigtime. I've been studying meditation for a while (and even practicing it, heh) and to be honest, I've had mixed results. I think it would pay in the long run, but I don't even think I'm settled enough to start meditation.
The trick, I think, is in connecting to your body instead of your mind. You can think of your experience as divided along two poles, headspace and bodyspace. ENTPs spend lots and lots of time in headspace. The remedy is to leave it alone and move into the body, and your breath is a good way to do that. You can use your breath to connect with your feelings about this particular moment. Are you anxious? Agitated? Upset? Restless? Check in over and over and see how things are. In fact, you can designate specific times to do this. Idle time is a great opportunity -- driving, walking, sitting, waiting.