What is the ruling regarding a father who curses the Divine Being and divorces his wife, even though he swore he would not do so again, knowing that he loses consciousness during anger and does not accept advice? And is the fact that his daughters are not married a tribulation for him?

The reason for what is happening with your father is anger and severe emotional outbursts. The Prophet, peace and blessings be upon him, advised against anger due to the evils it leads to. Anger can cause a person to lose their perception and consciousness, in which case they are not held accountable for what they utter, such as cursing the religion, because they are in the state of one who has fainted or is insane. However, if he is aware of what he is saying, then he is held accountable for it, and it may even lead to disbelief.

You should avoid anything that provokes his anger, and he, in turn, should distance himself from the causes of anger and treat himself according to Islamic law.

As for the delay in your marriages, its reason and outcome are known only to Allah. It might be good for you, as Allah Almighty says: "And perhaps you hate a thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allah Knows, while you know not."