I'm sorry for your loss, there is no way anyone say in time it will pass, having a child leave that way is painful. Taking your own life is unthinkable, doing that before God says its time for you to come home, you have no way of knowing how he is going to call you home. We have a choice in life, we have people that are out to cause you to do things that can put pressure on you and you think there is no way out, they show how controlling they can be, those people have very little thought for human life, they prey on the weak and tenderhearted, they feel that if they pick out that one person, they feel they have brought that person so low they can't see their way out. Keeping something like that to yourself, it build will up, you can't let others have that kind of control of your life. Depression and quilt are like a worm, eating away at your being. Having a guilty feeling of knowing that you caused someone to take their life is not what a bully will feel, he will know that he has brought someone to his level because he has little respect for himself, picking on others makes them feel a natural high. If you feel that you can't get out of this depression state, and doctors don't seem to help, take some time and just go away from anyone who knows you, have that special time to yourself and remember her, talk to her, let her know that you are still there for her, she will let you know she is there with you. God knows what you are going thru and he will always be with you. I hope this will help some. There is not a fix to a situation like this, people can give their advice, but it's up to you to be strong even in times of loss. Hold onto God's hand, and be Blessed, he will guide you to what you should do next.