Should i sue?

i have a long history with orthidontistry: neck gear, head gear, MARA, braces, retainer. i have recently found out that one or more of these devices has caused a treatable permanent speech impediment, which has caused me psychological trauma over my adolescent years, as though the metal covering my face wasnt enough. i have seen numerous speech therapists. now, my orthodontist wants to use ANOTHER device to correct this impediment. it will be in my mouth for at least 3 more years (i’m 18). at age 21, if something goes wrong with this device, it may be too late to fix it, as my jaws will be set permanently by then. my parents paid over $15,000.00 or more in check ups, devices and speech therapists over my lifetime, as well as $12,000.00 for my siblings. I never agreed to have these devices put into my mouth. all i can remember is my mom signing a huge check, that only resulted in psychological trauma. I told my shrink about this and he says i should sue the orthodontist. what do you think i should do? and by the way, he doesnt do anything. all he does is check at what his interns and nurses have done. one more thing: should the patient be able to object to such treatment, even though he/she is a minor? it is his/her body.