Lauri, I don't know you outside of TeenHelp, and I didn't know you before all of these difficult things happened to you. Maybe you will become a therapist someday... if that is a dream you want to hold on to, then don't give up on it! A good therapist needs to be aware of their own weaknesses, though. I am NOT saying that you are weak, but I AM saying that you are hurting, and that hurt has clouded your better judgment at times. Once you reach a better place in your life, you very well COULD go on to become a therapist.
I don't think anyone is a lost cause. I really don't. People go through difficult times, and when they're hurting, it can be hard to pull themselves out of emotional ruts. It may mean waiting a certain amount of time and learning from certain experiences. It may mean meeting the right people at the right times. I hope that you can see TeenHelp, and everything that has happened on this website over the past week or so, as a learning experience, as an opportunity to honestly evaluate yourself and figure out what you can do to reach a better place emotionally. I don't believe your dream of being a therapist has to end here - not if you're willing to keep growing as an individual.