<human>: Can you condense the text into a few key points?

I'm from Chile, living in Canada, and I'm pretty shy and not used to the customs here, so I don't have many friends at all. At lunchtime we're allowed to leave school grounds and go to nearby places to have lunch. Last Monday I was walking down there at lunch and I walked through this alley, when I was walking through it there were these girls from my grade who were standing there smoking weed. I got really nervous walking by them and I just walked by them without looking at them. At the end of lunch I went to the principles office and I told on them, and they got called down to the office and I think they got caught with weed in one of their bags as well, and they got suspended for 2 days.

There was 4 of them, when they saw me at school later on that week, they confronted me and asked why I told on them. And I felt really nervous and I didn't know what to say and I just started apologizing and I was really shaky/nervous, They said to mind my own business and stuff like that and they seemed kind of pissed off at me, and I started crying right infront of them, and now I'm nervous whenever I see them at school or anything. What should I do? What's your thoughts of this situation?
<bot>: I told on these girls at school for smoking weed, they got in trouble, now they are bullying me and I'm nervous about what to do