Will I have the chance to speak in court?
It depends. You do have a right to remain silent. You generally would have a right to testify in your own defence, if you want to during a trial. Other than that, you generally would have to speak through your attorney during the trial, or the judge would have to give you permission. But you do have a right to testify in your own defence in court. You can demand to take the stand. But your attorney cannot willingly present perjured testimony. So if the attorney knows you are going to get up there and lie in court, all he can do is ask you to give a narrative and cannot ask specific questions.