So meditation, or mindfulness practice, it's really about, to me, decreasing emotional reactivity so you can proactively create your day and create your life; versus, just being a walking reflex that sometimes screws up.
In other words you're sitting on your couch watching the sensations in your body, in such a way that you're observing your body and your mind’s reaction. So, perhaps over time, rather than flying off the handle and getting angry at someone for a, b, and c infraction … there’s that little moment between what they do and your response and you're able to "Oh … I see myself getting tight in the chest. I'm about to get angry. Let me pause. And then give a more rational reaction." Where you actually get the result you want, instead of the conflict that might be very gratifying for a second then creates a whole host of other issues for yourself.
And for those people who are wondering where to start … there are many ways to start. But I really think the simplest place is an app called "Headspace." Just do the "10 and 10," that's 10 minutes for 10 days straight. Give that a go. And it'll give you at least a taste of what it can do.