Replying to Im in trouble

Alright I went up skiing yesterday w/ 2 of my friends and we all met up w/ this kid who had some weed and my friends wanted 2 go smoke it w/ him I did 2, but my mom was up there and so was my friend who is opposed to doing anything illegal. SO I caved in and went w/ them...so about 20 min after we had smoked we went to the park and I geuss somone had told all of these people what we had smoked and out of all the people they had to tell was my little brother and my friend. Now my mom knows what I did my friend is pissed at me and I need to regain his trust. what should I do? Should I tell them that I didnt do it and tell him that it was some of my stupid friends? Im fucked thats all I know.

'Have you ever masterbated w/ soap and then pee and it fucking hurts?' - T-money.
'Just steal a car, its like a 10 hour drive. Its mexico everyone drive's stolen shit.' - calskierX