appealing driving suspension...

Hi ims. Im really not sure what to do next...
I know what i did was stupid and irresponsible ect ect... beleive me ive spent every day kicking myself for it but i need some advice.
I recently had too make a long trip too take my son to an appointment (5 hours each way) and on the way home was fined for speeding (was not intentional, just happened too go with the flow of traffic and not pay attention too my speed due to the long day id had and being tired) and lost all my points meaning i lose my licence for 3 months.
I am filing too appeal the suspension as i have never been in any trouble with police or anyone for that matter and have too have my licence for work, aswell as for my childrens health reasons. Ive even upgraded cars so i can now set my speed thingy too beep at me if by chance i get distracted and speed again.
My question is once ive filed the appeal what do i do next?
Do i need a lawyer? Legal aid? What do i take with me? I am scared too death of standing up in court especially since ive never had too before! I need as much advice and help possible. I know im going too be a nervous wreck on the day especially having anxiety but hoping that being a bit more prepared will help me cope on the day....
Thanks