I agree with Sannah. It may not be comfortable, but I think you have to get out of your comfort zone and open up if you want to make progress and start to feel some relief. It's not up to you to carry the weight of the world on your shoulders, and I think you really need to open up, at least a little, to your parents. You are blessed with knowing that they love you and care about you, but the only way that they can help is if you take the first step to reach out. It's scary, but you are braver than you realize.