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If you don't have any money then you can try applying for Legal Aid (i.e. government-funded legal counsel). If you are granted a Legal Aid certificate, they will cover the costs of your legal defence so you needn't pay a lawyer out of your own pocket. If you aren't eligible for Legal Aid and cannot afford a lawyer on your own, assuming no lawyer will take on your case for free, you will have to self-represent. These means going to court and entering into a guilty plea, or if you want to fight the charges, attending the trial and doing it yourself (i.e. questioning witnesses on your own).
Hopefully that is of assistance.
I do not have any of the disclosure or other evidence in relation to the case, I'm uncertain as to how I can assist you in telling you "how to fight it". We cannot give legal advice on this site, only legal information.