What do you mean "what is the diff between criminal trespass and trespass"? Sure, there's a civil cause of action for trespass, usually focusing on ending a trespass or recovering damages from a trespass, but how would that possibly be relevant?
I suggest consulting a local criminal defense lawyer about the possibility of getting the charge dismissed, perhaps conditionally, or some other outcome that will allow you to avoid a criminal record, based upon your age, (presumably) clean record, the facts of the offense, and career aspirations.

