I know what happy is: that's what I started feeling after I came out and started living as me full-time. For several months afterwards, I lost a lot of sleep. I was having trouble getting to sleep at night because I was so excited about getting out of bed the next morning and living another day of my life.
Eventually I realized I was experiencing a very strange emotion: I was actually happy to be alive. Not something I'd ever felt before.
So, congratulations! I'm enrolling you in my "Happy Club". We have lots of members, and we do all sorts of goofy things. We do a lot of clowning and smile and laugh a lot, and people ask us what we've been smoking. We tell them, "Nothing!", but they ask, "Well, can we have some anyway?"