It took me several years to get used to the idea that I was going to live forever in a paradise earth.
When I left it took me just a few months to accept that it was really ok to die, and because of my faith in God and his Son I know there is something way way better.
I will admit to feeling depressed to begin with, but it passed. I am now getting a life and not feeling guilty every time I do something just for me, (like sleeping in on saturdays and sundays). Enjoy your life, leave your mark, be kind to others and just be happy and not waste a moment. Become what you would have if you had never been part of the WT. They steal peoples lives, don't let them steal anymore of yours.