To represent yourself at any type of legal proceeding is a big, big mistake. Even lawyers don’t represent themselves. It is unlikely that you’ll know the court, the laws and the system better than a prosecutor, especially since the system is extremely small to being with. Another reason why representing yourself is a mistake is that you are emotionally invested in your case. This prevents you from looking at the facts to make the best judgements and follow the best course of action. Your best option is to hire an attorney.