We have no idea what the context is, so it's difficult to give you an answer. Or perhaps your teacher expects you to create your own context: your "box," for example, might be over-eating, not having friends, not doing well in school, etc. So you might describe what your box is and how you're going to change your situation ... permanently ("and stay out"). Again, we don't know what the intention is.
Please remember that we use appropriate capitalization on the forum -- we're not a text-messaging service.
Then you make up your own context as I suggested in post 2. Describe your own personal "box" and then describe how you'll get out of it and stay out of it. It sounds like a creative thinking question. If it's not, then it's a very poor question and you have no hope at all.
In my test-taking experience, as long as you can justify your interpretation of the question, then you'll be fine. If your teacher is a westerner, that's probably even more true.