LSD, if taken even once, permanently disqualifies you from flying due to the risk of a flash back.
No respectable airline will knowingly employ a former drug user in a sensitive position such as air crew. Can you imagine the publicity if the press found out ? The legal implications in the event of an accident would be unimaginable.
Also the drug culture doesn't go well with customs and international aircrew. There is the suspicion you could be pressurised into smuggling.
Two months really is nothing to boast about when it comes to being clear, talk to us again when it's been five years.
Best advice, forget it.