Please help me, please. im in so much trouble.?

last night, me (17 years old) and my friend ( 15 years old ) were smoking a ciggarette at the park, and a cop pulled up. my friend had cocaine on her, and a rolled up bill used for it. In a panic she tried to ter the cocaine and it spilled all over the floor. the cop confied the rolled up bill, and there was also 3 coke dipped ciggarettes in the car. he also took a few tiny pebbles of coke and took it. I am being charged with possession of cocain, as well as cocaine parifenalea. And so is my friend. I am so scared, we are hiring a lawyer to help. I had been cought with marijuana before, but they didnt confie it nor did they charge me with anything, so aside from a few tickets.. i don't have a criminal record. what do you think is going to happen? do you think im worrying way too much ? i have been feeling sick to my stomach, i can't sleep, i feel anxiety. I'm so scared of what is going to happen. what do i tell the judge? I am so scared please please help me