[shaggy69]

That's really a big bummer, but... keep in mind that nobody can ever win arguments in situations like that. I've been in similar situations, and I've found that when my family is freaking out at me, or preaching at me, or ganging up on me, it's best to just take their shit and wait until everyone calms down a bit (this could take days, or weeks). After the emotions aren't so intense is the time to make the "weed isn't so bad" arguments.

Also, if you're going to present that kind of argument, it would be best to present it professionally. For example, find reputable sources of information, and cite them.

I don't know how your family works, but maybe some of this advice will apply to you. I'm just trying to help, and I hope for the best for you.