If someone was driving carelessly and ran into your car, you would expect that person to pay to have your car fixed and compensate you for any injuries. Medical malpractice should be no different--except the car is your body. If a health care provider commits medical malpractice, you should be able to hold the provider accountable. You should expect the law to provide compensation to fix what can be fixed, help what can be helped, and make up for what can neither be fixed nor helped. However, the Arizona legal system is not so kind and many people are denied fair compensation.
There are several reasons for this (e.g., laws that protect the wrongdoer, rules that punish the injured, conservative-minded juries), which is why you should find an experienced lawyer to advocate for you.