EMERGENCY!!!!!!! 10pts!!!?

How do I convince my mom to let me^ take my cockatiel out of it's cage? She won't let me^!! No matter what I do or say she just won't let me^!!! I tried writing a letter, showing her proof that it's gonna die if I keep it in there, asking her why!!!! Everything!!!!!!! She said if I ask her one more time she's gonna set it free. She was holding me^ by my neck saying I have to keep it in there. She also said it carries diseases. Can I get help. 10pts.