What if you gave someone a gift, and they neglected to thank you for it - would you be likely to give them another? Life is the same way. In order to attract more of the blessings that life has to offer, you must truly appreciate what you already have.
Prescription for Life-long Happiness: Purpose enough for satisfaction; Work enough for sustenance; Sanity enough to know when to play and rest; Wealth enough for basic needs; Affection enough to like many and love a few; Self-respect enough to love yourself; Charity enough to give to others in need; Courage enough to face difficulties; Creativity enough to solve problems; Humor enough to laugh at will; Hope enough to expect an interesting tomorrow; Gratitude enough to appreciate what you have; Health enough to enjoy life for all its worth.
When you appreciate what you have, then you will receive more. When you are in this moment feeling gratitude for this moment you actually up your vibrational signal to attract more things to be grateful for.
Focus on what you're grateful for in your life. If you don't appreciate what you have, you won't get any more... because the universe thinks it's not important to you, and therefore you don't need any more.