I do not believe in predetermination. If everything was predetermined then there would be no free will.
I believe that some things that happen to us are subject to free will and some things are not, because they were predestined by God and we have no control over them.
I believe that God is responsible for both the Good and the Bad things that happen to us, those things that are predestined and thus beyond our control.
“Some things are subject to the free will of man, such as justice, equity, tyranny and injustice, in other words, good and evil actions; it is evident and clear that these actions are, for the most part, left to the will of man. But there are certain things to which man is forced and compelled, such as sleep, death, sickness, decline of power, injuries and misfortunes; these are not subject to the will of man, and he is not responsible for them, for he is compelled to endure them. But in the choice of good and bad actions he is free, and he commits them according to his own will.” Some Answered Questions, p. 248
Man is compelled to endure the Bad things that happen to us because God set it up that way since we live in a material world where some of the Bad things happen are beyond our control. Some of these Bad things are caused by the free will decisions of other people and some of them are simply accidents and misfortunes These are our destiny, our fate, for which God is responsible.