I would highly recommend his book the Pocket Titch Naht Hanh. Here are a few snippets. He talks about mindfulness amongst many other things & it all relates to our problems in one way or another.
Don't allow yourself to be a slave of the past or the future.
Resist the tendency to be carried away by your thoughts and fears.
We are always running, and it has become a habit.
"Hello, my habit energy, I know you are there!" If we just smile to it, it will lose much of its strengths. Mindfulness is the energy that allows us to recognise our habit energy and prevent it from dominating us.
Love & peace to you all.