To be honest, you should postpone the exam. Here's a correction of your question:
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Can I have some help with the FCE exam? (I assume you mean the First Certificate of English exam.)
I started studying a week ago, as teachers of English have to take the FCE speaking test. I'm preparing myself but I need to talk because I've hardly spoken in English. Can you help me? I have issues with grammar such as passive voice, conditionals, reported speech, modal verbs, relative clauses, adverbs, verb inversion, comparatives, although/even though/in spite of/as long as, I wish/if only, and I have to study a list of verbs. I have the exam on March 11.
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This is a LOT to learn in a short time! Most of this grammar is up to intermediate level, and looking at the English level in your own question (A1/A2), you're expecting to do over 250 hours worth of English study in ten days. (I've calculated the amount of hours based on the length of the courses we teach at my school, using our textbooks. I think that's a very optimistic calculation.)