That space between stimulus and response is what I mean by "a pause." The pause "muscle" in someone with ADHD is often not well developed, but that doesn't mean it is missing. I find it helps to become aware of a tool we have with us from the moment we are born until the moment we die -- our breathing!
Take A Breath and Become Aware of That Breath!
Breathing is almost always out of our conscious awareness. Practice becoming aware of your breathing several times a day. . . in-breath, out-breath,
in-breath, out-breath.
Notice when you switch from an in-breath to an out-breath and use that moment to pause. Use that moment when you switch from in to out to become aware of where you are in time and space, in other words, to pause and consider your situation and your options. In that moment of being present, you have a chance to respond rather than
react! You're building your pause muscle and moving toward growth and freedom!