OCD - Marijuana fix - Questions

Hey I'm not quite the legal age of 21 years old to smoke weed quite yet and starting at a young age i started repeating phrases or words over and over and over again in my head sometimes even out loud when its bad i cannot seem to control myself from thinking it its nothing bad though trust me the words are meaningless words nothing bad...But anyways i repetitively say shit in my head over and over sometimes i dont even realize but i normally cetch myself doing it and i can not seem to stop and recently its been getting worse BUT scene i've started smoking weed it had calmed down and normally doesn't come back for a day or two after i smoke but it will always come back that and my anger and depression along with most my OCD has almost vanished but i still have OCD and its driving me insane you'd never suspect me as the type nor do i seem weird or socially awkward. But idk why i have this issue the phrases and words i say have no deep meaning or past so idk why i say them but weed seems to be the only thing to majorly help this issue...also for whatever reason when something sad or tracic happens it triggers it a little more and stresses me out but saying it seems to unstress me but then i get stressed if i dont say it enough or correctly...WTF is this sometimes i even just stop talking in the middle of a conversation rarley but i do to say this phrase or word and all that...HELP ADVICE? (Im not crazy though trust me im a fairly popular person thats happy 24/7 and seems to have no proublems nor have i had a history)

Questions

I do smoke weed a lot and i live in COLORADO so its legal if your 21 witch i am not and i was wondering the legal age for a red card? whats the min and max?

Also why do i have this issue and how could i get rid of it i do smoke weed so its not too bad but if i quite it would get so bad so im not going for professional help unless its a major issue...

 

haha im saying that it doesnt seem like i am it seems as if im ok