You know I've had that same situation and sometimes it is the group of friends you are around. People do act drunk in different ways.. which is quite obvious but you know..
First things first.. Don't ever feel pressured into a situation to drink, one if you're not used to it, it can be quite dangerous in terms of your actions and the aftermath, be sure someone is there to look after you.. Never know who is looking to take advantage (sorry if that's harsh but its the truth)
Also secondly, be comfortable with who you are, you DON'T NEED to drink to have a good time, there are people everywhere who act like fools and don't drink at all, they look like they're wasted but they're completely 100% sober, You can always have a great time with the right people in any situation, and alcohol doesn't need to facilitate that!!
Thirdly, I am sorry to hear about your mother and its obvious why you don't drink and in my personal opinion good on you!! You know that people should be a bit more sympathetic to your situation not in the way to give you pity, but not to pressure you into that type of situation so maybe reconsider your friends circle?
Fourthly, if you are not comfortable with hard drugs, be honest with your boyfriend, be frank and straight with him about how you feel about it. He may just think its for a laugh and may not be aware of the consequences until he may actually be on a hospital A & E intensive care unit table.. Make sure he understands the risks, but to be honest it's his choice.. and well not to be offensive.. do you really want to be with someone who is experimenting with higher class drugs than weed?
That's just a personal opinion but just remember esp with drinking, be yourself, smile, don't feel pressured and you can definately have a great time without being completely smashed or drinking at all!!
Sober all my life.. Having the time of my life!!
:-)
N89