Should I Plead Guilty Or Not Guilty?

I'm a 14 yo female and I got arrested for robbery. (no comments on that please, I learned my lesson as soon as the handcuffs came out).
I snatched a womans phone from her hand, on the 2 train coming from school. I have no previous arrests on my record and I'm a straight A student.
Here's where it gets complicated:
The woman was a social worker for acs… (oops…) and the phone was an iPhone 6 plus (oops…) and some truancy officers came to my house the other day cuz I had skipped a month of school. So will they get involved?
So yea, I need some answers for that. But my main question is how to act when I see the judge. I have family court in two days and I think I should plead guilty

Guilty. Throw yourself on the mercy of the Court.

Ya cain't "had skipped a month of school" an be straight A's cuz u dun missed dem tests.

If they have the evidence against you plead guilty. And be the nicest and sorrowful person you can be towards the judge.

"and I think I should plead guilty" Of course you plead guilty you did it!

First off even if you were a straight A student(and exoplanet already made the exact point I would have made) it wouldn't matter to the Court. Courts don't say oh you're a good student so it's cool if you break the law. Reality is you were way too easy to catch and the evidence of being in possession of stolen goods in the least is clear. Not sure when they caught you as to how easy the theft is to prove as well, but I'm guessing you were caught with the phone, and those are really easy to prove it was stolen. Pleading not guilty really won't do you any good. As to the charges for skipping school, those would be separate if your State allows them.

Yes, the truancy will be a problem. Act like you realize how unbelievably stupid and immature you were.