I am a teen and my mother may possilbly be HIV positive, is there anything I can do?

You need to be there for your mother. You need to understand though, that there isnt anything you can do except make yourself available for her when she needs you. To be more educated about the virus, you can look it up online and educate yourself to be more aware of what your mother will need to go through. Show her love and support, be there for her, she will appriciate that.