Broken Creations

My poor daughter has such a hard time with legos. She builds something, then crushes it, then cries because it's broken. It just happened with an incredible forklift that she built. She showed to to me and I was very impressed. 30 seconds later she's in tears. It seems like she doesn't know how to be careful with things! This kind of thing happens all the time. She loves to make things, but they're never indestructible. I don't know how to handle it. It upsets me, too, and I feel bad for her.