Always, always remember. State of being is everything. If you truly want to be happy, you have to resist letting your circumstances in life dictate your emotions and happiness. Your state of being, or more simply, your emotion, is completely up to you, regardless of what is happening in the external world around you.
Once you fully realize this fact, you can change your emotional state at will, and THEN the external world and all of the circumstances around you will reflect that state of emotion, further reinforcing your desired state.