If this is 97 in a 60 mph zone then you are in the highest bracket which would attract either 6 points or a short ban. A short ban might be better but I’m afraid you don’t get the choice. That is for the bench. You can always ask obviously.
If you receive 6 points you will be a totter.
You do need representation really but you don’t need to use a solicitor which will be fairly expensive. A barrister under public access is much cheaper and perfect of this type of hearing.
You do have the option of asking the bench not to disqualify you on the basis that you will suffer exceptional hardship.
Exceptional hardship is a high test though and you do have the burden of proof. It means more than mere inconvenience. We would all suffer inconvenience if we couldn't drive but that isn't the same thing as exceptional hardship.
The place to start is to get confirmation from your employers than you would lose your job without a licence.
If they won't go that far then you need to prove why it is impossible to do your job by public transport. That might mean gathering bus and train timetables and a log of your monthly movements so show why it cannot be done. If it can be done but it is disproportionately expensive then you need to cost the journeys and establish why it would cost more than you earn which is simple enough by producing your income records.
Can I clarify anything for you?