Let's take a look at this in stages. If you just were pulled over for a rolling stop and ticketed, that normally would only result in a small fine, and perhaps also result in an increase in your auto insurance rates, but by itself would not be a big deal. Here however you are a new driver (licensed only 5 months) and some states have rules that are particularly harsh when a moving violation is committed by a brand new driver. But that's the small part.
What's more important is the potential result from your possession of marijuana. As you undoubtedly recognize, although Ohio has legalized MEDICAL MARIJUANA for those with certain stated conditions whose applications are approved, in general the possession of marijuana (which seems to be spelled marihuana in Ohio) in other circumstances is prohibited under the law.
It is my understanding that under Ohio law (and you'd better check this out with a licensed and knowledgeable Ohio criminal defense lawyer -- I am neither an Ohio lawyer nor a criminal defense lawyer) possession of up to 100 grams of marijuana was treated as a "minor misdemeanor" that would be punishable by a small fine, at least as the law existed through October 31, 2018. However, you didn't mention when you were pulled over, and you seem unclear as to the amount of marijuana you had on you, yet that's critical under Ohio law, which distinguishes the nature of the offense, and the potential penalty, based on the quantity in possession. If it was over 100 grams but still less than 200 grams, you'd be facing a misdemeanor punishable by up to thirty days in jail and a $250 fine (at lest under the law in effect thru October 31st. If the amount of the drug involved equals or exceeds 200 grams but is less than one thousand grams, possession of marihuana would be a felony of the fifth degree -- which would be a pretty serious blot on your record going forward and also could result in a prison term for the offender.
As a lawyer I would URGE you to seek IMMEDIATE legal help from both your parents and an Ohio lawyer who handles cases such as yours immediately!!!!
Depending upon all the circumstances, including whether you have had prior run ins with the law, your high school academic and disciplinary records, what you've done that is commendable in the community, your reputation in the community, and the willingness of reputable people who know you to speak well of you, a capable lawyer might be successful in having all charges dropped, or at least having the charges reduced -- ideally to the lowest possible offense. In the interim, discuss the matter with your parents (sure they'll be angry, but that's par for the course), and don't discuss the situation with friends or others, and don't post on boards like this, as anything you say can be used against you....
Most importantly, I hope for your sake that you learn a lesson from this experience, as a first offense is one thing, a second offense would be far more serious.
