This seems familiar for some reason. Don't remember who.
Diamond the CIA Doggie Daycare CIA Sniper candidate who was outed in a whole series of really appalling gay porn videos that, IIRC, Veer found and posted.
OP.... Drop the weed and vapes, etc. Like, now. It's not a disqualifier. But if you need chemical support to work stressful kitchen jobs... then you are going to be really challenged to pass anything beyond KP duty at basic.
The whole point of tier one units is MENTAL toughness. If you need stimulants to get through dish washing and line cooking, you won't make day one at any kind of selection.
As for SAS or a UK tier-one unit... as an American, they have no use for you. You need to be from the Empire. You could try the French Foreign Legion... but your own USG sort of frowns on that.
Well, that's all I can advise... Oh and since any tier one unit does a major background check... posting that you are smoking weed to get through KP.... won't end well. Forums and social media are like digital tattoos. They never, ever go away.
Good luck with your dreams! I am not going to suggest you have disqualified yourself. But you are not off to a good start! Here or trying to get into a SOCOM unit.
Cheers!
Sirhr