The coping mechanisms I used back in the day weren't very good for me. Over the years, they had me twisted up like a freaking pretzel. The only thing that really helped was transition.
Here are things that didn't work, or didn't work for long:
Identifying myself as a cross dresser
Calling myself "only" transgender and not really transsexual
Crawling into my head for years and years and years
Going back into the closet
I suppose I had to go through the self-definition phases because for a long time I didn't know any other people like me, and we didn't have all of this internet stuff. But it was all a screen for what I really was. If you've truly accepted yourself, you're way ahead of where I was when I was ten and twenty years older than you.
Things that helped me right before I started transition or when I was early in transition:
Hanging out with other trans people
Going to therapy
Coming to Susan's
Writing in my journal
Making lists of transition-related steps--the smaller, the better
Making a transition plan, or trying to--it was anxiety-inducing and uncertain, but it helped more than it hurt
Getting control over other areas of my life, since my gender issues had me by the figurative balls (so I found solace in exercise, losing weight, and eating the kind of food my body runs best on)
Do you have a plan, even a tentative one?