Things will not out for the best, but they will also go less wrong than you thought.

Most of the time, things dont turn out for the best
Most of the time, when things go wrong, they dont go as wrong as you were fearing.

For example, you might lose your job. But you are unlikely to starve to death. You might lose a boyfriend or girlfriend, but you are unlikely to suffer a life of misery as a result.
The best way to deal with these thoughts is to think through what you would do if the bad thing happened., and will also give us an action plan in the even that k

Highlight: All too often, the Stoics point out, things will not turn out for the best.
But it is also true that, when they do go wrong, they’ll almost certainly go less wrong than you were fearing. Losing your job won’t condemn you to starvation and death; losing a boyfriend or girlfriend won’t condemn you to a life of unrelenting misery. Those fears are based on irrational judgments about the future, usually because you haven’t thought the matter through in sufficient detail. You heard the rumour about cutbacks at the company, and instantly jumped to a mental image of being utterly destitute; a lover behaved coldly and you leapt to imagining lifelong loneliness. The premeditation of evils is the way to replace these irrational notions with more rational judgments: spend time vividly imagining exactly how wrong things could go in reality, and you will usually find that your fears were exaggerated. If you lost your job, there are specific steps you could take to find a new one; if you lost your relationship, you would probably manage to find some happiness in life despite being single. Confronting the worst-case scenario saps it of much of its anxiety-inducing power. Happiness reached via positive thinking can be fleeting and brittle; negative visualisation generates a vastly more dependable calm.