Shun,
Welcome to the board.
I dealt with my discovery of the real truth very badly at first, and did totally the wrong thing, denounced the org to my family with hate and bitterness.
Now they are very wary to talk to me about anything JW related.
After the anger passes (which it does) it is important to focus, like Comf said, on yourself and your skills and goals, look to what you intend on doing in the future, what your goals are, and go for it. Do not live for the present with the view of the world ending at any second.
I did not turn into a major party animal after I left, I am still exactly the same person with the same standards and morals.
Instead, I focus on the things I have always wanted to do and could'nt because of the UNBIBLICAL doctrines of the org. Now I enjoy my life, I can go to college and work towards my career, I can play competitive sports and associate with any nice people I want to.
Thankfully, I have a loving partner to help me through it all, when you start to get over it, instead of feeling anger you will just feel relief and LUCK - you got out, you are free. Its hard to start again, you have to make freinds, instead of having them already made for you, and you have to conquer those horrible feelings of guilt. This place may help you, it may make you more angy, but do what feels right for yourself and you will get through it.