I really need some help this might be a kinda long one but my sister that is 17 and has been doing some things that I don't really agree with ( sneaking out ) and other things but today I saw my brother in law that's also 17 and he told me that my sister has been getting WASTED and so many other things that he doesn't feel comfortable speaking about. My problem is he he showed me a text message of there's and this is how it went.

( Alexa )

Chevron

Bye

Sorry

Lax dm

Marc

Airmailing

Ivvuahs fitkvgwrv hits

I. She commoners is she

( Andrew ) - Alexa go home

( Alexa ) - And that dm wh ai rid. Give you tie be wyd J won't of hurt you

Sit up

You doh are

I obey leebth to worry rhb

I understand that people drink underage all the time but I have a gut feeling this is something worse. He told me that's text messages took place at 10pm of Friday. I have spoken to my mother and she basically said that everyone has secrets and it's none of our business. But I think she has a drug problem. What can my next steps be? This is something that's been happening frequently. Please help! I'm so stressed!