Am I overreacting?

你 see,this girl 偷了 my Ipod,and I am worried sick because it has a lot of personal and important stuff on it. She even 偷了 my friend's Ipod. So,I really want to 冲床 her for taking it,and to the point I keep wishing I could kill her. I'm not even sure,what I can do to get it back. She has 3 狗 in her house and I am frightened of dogs. Besides that,I can't tell my dad about what happened 或者 he'll flip out. So,all I can do is wait and hope that my friend gets both our Ipods back.