I understand your frustration. There's a fine line to be drawn between just helping out and being overprotective.

Yes , be careful online. Realize that facebook isn't as secure as it used to be -but the questionairs are normaly ok, or so I've seen.
I wish I had more advice, but you might need to work something out with your mom... I don't know if you live with her ...

just, sending hugs
wish I had some actual advice