First of all you've finished school, it's "you're". I get enough bloody stick for that and I didn't even finish college so you bloody well aren't getting away with it.
Second, you can claim at any time as long as you are not CURRENTLY a student and are seeking employment. "Currently" in this case means you have passed your course end date.
Also generally if you ask a question it's rather rude to tell someone who offers you an answer that they are wrong, you asked the question after all, if you already knew the answer why bother?