I agree @Phoenix_Rising however for those who have not 'done' mindfulness, there has to be a starting point to understand what the 'mindfulness' actually is, and how to do it. I think that is what is meant when we talk about 'doing mindfulness'.
To me, it is indeed a way of life, but I've been 'doing it' for over 50 years now, so it's sort of second nature, except when it isn't. It's those times that we need to come back to the 'how do I do this again?' question.
Like when the waves of despair are washing over me, I'm being mindful of those waves and of the despair, but I can't, don't want to, stay in that for very long, nor do I want it to negatively affect others who might be witnessing it. I like to keep my waves of despair to myself, for the most part so as not to overwhelm or inadvertently hurt others.
This is why I'd like some strategies on how to come back to the 'how do I get my mindfulness back when I'm in despair mode'?