When you know what makes you happy, you can be happy.
1. Something to do.
2. Something to look forward to.
3. Someone to share it with.
Start with number 1. Find something important to do. You may need to begin by developing better relationships, getting a new job, picking up a hobby, or volunteering at a local non-profit.
Next, really get into the moment. Be as excited as the child you once were, waiting for the first day of the new school year. It's a new year and that means a fresh start.
Finally, make your true connection to someone who will be sincerely happy for you. Get the ball rolling. Go out of your way to celebrate the joy in someone else's life and watch all that happiness come right back to you.
This month shall be unto you the Beginning of Months: it shall be the "First Month Of The Year" to you.