Another concussion.. dangerous?!?

i recently had a concussion about a month ago. I was never fully cleared but pretty much, i was. it was about 95 percent cleared. so imm just becoming normal again, and then last night my friend and i were playing street hockey, she had a hard ball, like as hard as a hockey puck or a baseball. I was standing right there and nobody was watching and she hit me so hard with it. Like a slap shot, it hurt so bad then a bump was forming. I came home locked my slef in the bathroom and she thought it wasnt a big deal saying " your concussion was fricken so long ago, u are fine, dramatic" all of that. but it hurt really bad. i went to sleep. and it still hurts now. im so mad and idk what to do. when i touch my forehead its really sore. but the inside hurts too