So if instead of waiting for all these achievements/results in order to be happy. Instead you can just simply choose happiness regardless of circumstances. Habitual happiness.
You always have a choice in any present moment circumstance to be happy or not. It is a choice to search for and focus on the positive/happy and hold onto that instead of anger/upset
When your in traffic you have a choice to either be annoyed or angry your stuck in traffic or choose to put on some music happily enjoying a few extra songs on your way home.
Meditation is great! It trains your mind from running on autopilot all day to you having control over what you give your focus to. I have been meditating for almost 1 year daily now.