First of all, it depends on whether the lawyer has special authorization. If you withdraw the lawsuit without your special authorization, you can complain and accuse the lawyer's illegal agency behavior to the local lawyers association and judicial bureau, and investigate the lawyer's responsibility. For the court, you can complain to the court and demand that the judge be held accountable for handling cases illegally. If you sign a special power of attorney in advance, the lawyer's behavior is regarded as your behavior and legally valid.
Secondly, according to the regulations, if you want to sue again, you need to wait for six months. Article 214th of the Supreme People's Court's Interpretation on the Application of the Civil Procedure Law of People's Republic of China (PRC) stipulates that "if the plaintiff withdraws the lawsuit or the people's court handles it according to the withdrawal of the lawsuit, the people's court shall accept it if the plaintiff files a lawsuit again on the same claim. If the plaintiff withdraws the lawsuit or the divorce case handled according to the withdrawal has no new circumstances or new reasons, and the lawsuit is filed within six months, it will not be accepted according to the provisions of Item 7 of Article 124 of the Civil Procedure Law. "
Thirdly, for her family, your father's father was slightly injured in the second degree, so you can ask the public security organ to investigate the responsibility. If your father does not agree to mediation or understanding, it will never end without losing money, and he will be investigated for criminal responsibility, and may be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance.
Fourth, the fact that the woman conceals schizophrenia does not belong to the legal situation of invalid marriage, and she can only go through the procedure of suing for divorce.
I hope it helps you.