There are two types of unavoidable events: those that are essentially inevitable, like death, hunger, and thirst; and those that are unavoidable because of the choices we make, or the lack of choices we have, whether our own or those of others.
Once you are born, you are fated to die. However, your death is not a product of fate, but of logic. As a mortal being, along with many other mortals, you are prone to the inevitability of death. The force we might interpret as a divine intervention is simply the result of logic and evidence.
The second type of unavoidable events were not initially inevitable.
My choice to become a monk has cost me an otherwise romantic teenagehood. However, my own decision to practice celibacy during my teenage years (and perhaps for all eternity) has led me to experience a non-romantic teenagehood. In other words, it was too late for me to experience romance, making the romantically-empty events of my teenagehood unavoidable.
This is an example of how one's undoing can lead to one or more unavoidable events. When a chance is missed, whether intentionally or incompetently, some events are likely to be inevitable.
If you are a leader of a nation and you negotiate discussions of peace with a hostile nation, and your negotiations are reasonably successful, you will make the events of peace unavoidable. This is an example of how one can make one type of event inevitable and another type of event avoidable.
Much of our lives are under our control, but the different chronological spheres of different opportunities are not. While a woman can have control over her romantic relationships, she cannot change the inevitability of eventually becoming infertile. This is not a product of supernaturality, but a result of biology and the logic that governs biological entities.
Thus, logic dictates that there are inevitable events that exist simply because they exist, and inevitable events that exist as a possibility due to our own choices, even if our choices were not made to serve as catalysts for them. For example, being successful has its own consequences, just as being a failure does. In other words, it is arguable that many of our choices, positive as well as negative, carry the burdensome possibility of one or more unavoidable events that could bother or even attempt to hurt us, our endeavors, and/or our reputation.
This is especially true in modern times in the virtual sphere of the external world, where your every action can easily be put to shame or mockery, whether or not those doing so actually understand the issue or person they are intentionally ridiculing.
I believe that the most mature and realistic option in this case is to stand up for yourself and be willing to endure life's hardships and try to live as best as you can with your problems and with the logical inevitability of both your existence and the choices you make throughout the journey of life. We all have inevitable events, some of which are universal to all human beings, while others are determined by our actions.
What should be clear, however, is that every situation's history can be determined through rationality, and not necessarily because of supernatural determinism, even though some may disagree, which is legitimate.
Nonetheless, because inevitability is a part of everyone's life, even if it is only because of death, we should not bring the inevitable closer than it already is, when we have enough room to do other things before the different points of no return. We should only pursue inevitabilities that bring more benefit than harm, especially given the time-limited opportunities that are available to us before they end for us.
The term "everything happens for a reason" is therefore technically true whether or not supernaturality is involved, and we are indeed "destined" for things even if destiny does not exist in reality. Can this same logic be applied to the universe itself -- something that was caused by a logical reasoning, while not necessarily by the command of a higher being?
According to this source, it is reasonable to believe that existence was formed by a certain force called "Zero Point Energy", which is possibly the most elementary energy in existence that instead of being created, it fluctuates, AKA, comes and goes.
The term "everything happens for a reason" is therefore technically true, whether or not supernaturality is involved. We are indeed "destined" for things, even if destiny does not exist in reality. Can this same logic be applied to the universe itself? Could the universe have been caused by a logical reasoning, even if not by the command of a higher being?
All of this can be concluded as follows: things can and do happen without spiritual intervention. Whatever happens is a product of a series of events that happened before it, and some of these series lead to inevitability when a point of no return has been reached. This point does not have to be a "divine verdict", but simply a result of choices that were made within and beyond one's control, given that it was chosen by anything that is not simply socio-economic, environmental, genetic, or political circumstances.
Circumstances, some of which can happen before you are born, and could even determine the rest of your life, or at least a good portion of it. Hence why concepts such as fate, destiny, verdicts, and curses, might as well not be necessary to exist in a reality whose events are caused by a series of cause and effect.