Take Away - the WTS is good at taking away from people. For instance, they take away independent thinking, trust in any worldly organization, hours and hours of your time in service, weekends, loved ones through shunning, and finally hope for eternal life. When you lose your faith in the organization, is it any surprise that you feel empty?
Fill Up - After so much of what you trusted in is stripped away, it is important to fill your life up with new things. If you still love Jehovah and desire a relationship with Him, build on that, but through independent study. If you have lost your faith altogether, go out and study and learn what you DO believe in. Libraries are free. Restore your ability to think for yourself, a treasure of great value. If you have avoided former family, friends, and associates because they were too worldly, take advantage of your freedom and work to restore those relationships. If you have nobody, learn to make friends on your own (without the help of five weekly meetings). Have you lost hope? Why? Because you still believe everything they told you? Go out and rediscover hope. There is so many ways to learn and grow!