Is it permissible for a girl suffering from severe domestic abuse and a desire for deliverance to commit suicide, given her fear of God’s punishment, and will God forgive her for it?

Suicide is one of the greatest major sins and transgressions. A believer does not despair of Allah's mercy; rather, their heart is at peace with their Lord, and they entrust their affairs to Him. Therefore, one must fear Allah and beware of the whisperings of Satan. Parents have rights, no matter their condition. Allah may avert something a servant desires and store for them something better, due to their ignorance of their own best interests and the generosity and wisdom of their Lord. It is permissible for a woman to offer herself in marriage to a righteous man, within the prescribed guidelines and etiquettes.