My name is XXXXX XXXXX I am an experienced criminal
It does not sound as if the officer had to read you your rights. People who are not lawyers frequently misunderstand Miranda. Rights do not have to be read in every case. Rights only have to be read if after you are arrested, you are interrogated about the incident by the police. If you were never questioned about the incident, Miranda simply does not apply.
Possession of any amoutn of marijuana in Michigan is a misdemeanor
with a maximum penalty of a year in jail, a fine and a mandatory 6 month suspension of your driver's license, However, if you have had no previous contact with the law, you are eligible for a program that could result in a conditional discharge. That is, you could get a special form of probation where you would pay fines, do community service and stay drug free during your supervisory period, but once you completed everything successfully, the charges against you would be dismissed so that you don't have to carry a conviction on your record.
As this is not an "automatic" even though it's a typical first marijuana offer, you ought to have a lawyer in case this would have to be negotiated for you or, for that matter in case you want to fight the case because you were not using/did not have marijuana.
If you can hire a lawyer, get him on this sooner rather than later so that this can be worked out before your court
date if at all possible. If you can't, when you show up in court, you would plead not guilty to the charge to keep all of your rights open and ask the judge to appoint you a public defender.