Good luck or bad luck

Do you believe in good luck and bad luck?

In fact, until recently I did not believe that

I believe that our lives are an inevitable result of our decisions and luck has nothing to do with what happens

But a while ago, my convictions began to change

Sometimes we buy something new and then all of a sudden it crashes What do we call this

We go on a trip and suddenly the sky becomes cloudy and it rains

When we have a lot of work it's sunny

When you wait for the train it's late And when you use another method, everything arrives on time

I try to avoid thinking that way but a lot of things happen these days

So I don't know if it's luck Or is there something else?