Relaxation is so important in our everyday life.  Yet, so many of us truly do not know what is feels like to be in a relaxed state.

Diaphragm breathing - breathing and not allowing your chest to rise.
Deep breathing - in through the nose and out through the mouth - trying to blow up a balloon, or blow out candles.

Relaxation is not going all day and then crashing as our head hits the pillow.  It is being fully conscious as we take ourselves to a meditative, restful, place.

Distractions can hinder our ability to relax.  Music must be calming and not something we know the lyrics of or strong beats.  Noises must be kept to a minimum at first, and it takes time.  Our brains are not wired to relax - they want to, but we have trained them to overthink, overexhaust, and to go until it finally crashes.

Practice makes perfect - try relaxing (sitting in silence) for just five minutes three times and day and as time goes on try to expand that time.