If you wish to achieve happiness, you need to accept that there will always be better things in life and that there will always be many differences. You should always know that it’s best to love and accept your own with all that you already have in that exact way and form. Otherwise you will never achieve real happiness or the feeling of satisfaction.
Take a moment for yourself, and realize about all you already have today. Embrace it to achieve the true feeling of satisfaction and gratefulness.