Hopefully you have records for all of these transactions. They started asking about crypto assets this year and want to see records. As far as the weed use, I wouldn’t bet on the minimum amount of time to show that you have mitigated it.
Are you sure this is how it happened? If you passed the ASVAB, there is not a Marine recruiter on earth that would pass you up unless there was some other reason. The officer recruiter and the enlisted recruiters are separate and I find it kind of hard to believe they would recommend you for OCS when they could have had you enlist right then if you were qualified.