"I don't know the right way to say what happens."
Yes you do. This can often be a case of thinking so much about how to say something that we forget why that something is important. We can get lost in those thoughts to where we are not being a writer. When we write, we don't have to say things the right way. We just have to say them; we can perfect them later. If we give ourselves permission to get through it now, we can fix it once we know what we really want to say. If that's too difficult to do at that moment, we might want to consider if our problem is one of the earlier ones in disguise.
The good thing about writer's block is that it is a rite of passage. It will happen. When it does, it gives you the opportunity to find a cure for your personal case. You can learn a technique that gets you through it, which makes you that much more of a writer. You can even offer it as advice to other people when they are bogged down in words as well.
And when you are at a total loss? Well, those candies won't crush themselves.