im in a similar situation, and have been having the same sorts of worries recently, about what ill have to do/say when i get into court, and all the practicalities involved. ive been told someone from witness support will come round and talk to me and explain what will happen, hopefully something similar may happen with you.
on a less practical, more emotional note, my councillor told me recently that when i get up there im not the one that has something to prove, ive done what i had to do already by reporting him in the first place. she also told me that even if he gets found innocent then it doesnt mean to say people think that ive lied, simply that theres not enough evidence to convict him. that was a major worry of mine, what people would think of me if hes found to be innocent, but this helped massively. hope it helps you too, and that things work out for the best for you. xxx