The saying 'Beauty is in the eye of the beholder' rings so true. Have you ever kept a 'Gratitude Diary?'. All you need is a notebook, and taking a few moments before sleep each night to jot down the thing/moment that you were most grateful for that day. It can be as simple the enjoyment you felt cooking with your child, sitting quietly reading with them, talking with your neighbour, having a cup of tea with your best friend!
(To get you started, why don't you cover your notebook in pictures of your top 5-10 favourite 'things' in life!).
I found from keeping one, I started to appreciate all of the wonderful little moments I have each day. I had more to be grateful for than I realised!