Miguel wrote:
i have been in court before a few times as a student, and I want you to know that it's 100% normal to feel anxious, regardless on whether you're the one who is being judged, or if you're the victim of a crime, or if you're a witness of a crime.
I personally would recommend you to write down what you do remember, as clearly as possible, and avoid saying "yes" or "no" to things you do not remember as much. in my experience, judges don't really care about anything but to make their job as quick as possible, and for witnesses to be as accurate as possible (meaning, not constantly changing their versions on what they saw/didn't see)
also, i know this is easier to say than to actually do, but do not feel intimidated by any of the questions formulated by the lawyers, especially if they are the defendant's lawyer. they are mean, they are cruel and they will try to trick you into saying what they want you to say. do NOT fall for that.
if you don't remember something, you just have to say "i do not remember".
if you remember something, but the way they're asking you about that something seems tricky, you could say "i don't understand your question" or "could you repeat the question?" (most of the time, if a judge finds the way a lawyer phrases their questions as tricky, the judge will be harsh on the lawyer and make them rephrase their question)
avoid phrasing your answers in a way that seems like you're assuming things that could've happened that you are not sure about. again, if you don't know or remember, state that. avoid trying to fill any gaps, just say what you remember. the judge's job is to take in all the bits of information you and other things can give them in order to recreate the event
you will be fine, although it is a tense situation. take a lot of care and please don't be harsh on yourself