I left half blank on my ACT?

You can't change what has already happened, obviously. And empty reassurances from people on "Answers" who are just wild guessing actually have no value. There are only a couple of things worth thinking about. The first is that the test designers do not expect people to finish all the questions. Standardized tests are made "out of reach" for most people on purpose, so some of the questions you left blank won't matter. The second thing to realize is that you can take the test over again, and you will be more careful next time. Your scores may be high enough just as they are so that you get admitted to the college where you want to go, and if not, nothing is carved in stone -- you'll have other chances. Forget about looking for strangers on "Answers" to tell you what you want to hear, and concentrate on preparing for the next time you take the test. That activity will prove to be a much better use of your time.

Don't think so, the first half of the act is pretty easy. How did you forget to guess on all four sections?