I Want to Be Happy

Don't we all? I most certainly know that I want to be happy. This phase of my life sucks because it seems so repetitive, boring and non eventful. Many people have told me that my 20s and 30s will be the most fun time of my life but the truth of the matter is that it has been anything but fun. Boring, depressing.. sad even but not "fun". Some days are better than others , then some days just drag on and this sadness that I feel inside doesn't seem to want to go away. I've tried just about everything but nothing has really seemed to work. I wish that I had a magic wand to twirl so that way I could make these feelings of despair go away. So to those that have found happiness.. what's the secret? What am I doing wrong?