Do you have any other tickets in the past 18 months? If not, than you can ask for traffic school, and plead no contest. You would still have to pay the fine and the fee for traffic school. You might want to try to ask the judge to convert your fine to community service or suspend it because of your financial situation. However, do not be surprised if he/she denies your request.
You can miss defenses and say the wrong things if you are not represented by an advocate as your attorney.
You need a lawyer so get one. ASAP!
Talk to a local lawyer that handles tickets
You might find my Legal Guide helpful "How to Choose A Lawyer For You"
You might find my Legal Guide helpful " What Do I Tell My Lawyer"
No one can know what the record is in the case because online we cannot find out any details. You need a lawyer. Check with a lawyer in your locale to discuss more of the details.
Good luck to you.
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