You really need to consult with a reputable criminal defense lawyer. There is simply not enought info to answer your question here. The answer would depend on far more than whether you are a first offender...things like what was the drug, what were the circumstances, and the prosecutor's policies about drug delivery cases.
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Manufacturing is a felony. So either you are confused about what you are charged with or the level of the offense. Most defense attorneys offer free consultations. You should call a few in your area to find out how they would handle your case.
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