As a good friend of mine likes to say, "You cannot put her on a pedestal."
If you do, you can't be yourself, which really defeats the whole thing.
A word of caution is, if you follow Tia's advice, don't make it a point to avoid her. Just be normal, but don't make it a point to be there all the time. If you run into her in the hall, say, by all means have a nice chat. Just don't wait for her at her locker. Now, of course, coincidences can happen
You must have your own life. If you don't have one, how can you share it with her?