What do you fear?

The word ‘phobia’ is from the Greek ‘phobos,’ meaning ‘fear.’ When talking about phobias, there should be a prefix attached to the beginning of the word, for example: arachnophobia, which is the fear of spiders; this prefix should also be in Greek, although as time has passed others have appeared, such as those in Latin and other languages.
Have you ever stopped to wonder why you fear what you do? Some people are scared of leaving their houses (agoraphobia), some are scared of spiders (arachnophobia), and some people are scared of germs (germophobia). But why do people fear these things? What about bigger fears? Like fear of failure, fear of humiliation, fear of rejection, fear of making a mistake? What do you fear? But more importantly, why do you fear it?
I have feared that I have forgotten to lock the house dor when we leave to someplace for decades!
So what is your biggest fear?
Yes! Everyone is afraid of something. We fear things because we value them. ... Don't wish you didn't fear anything. All that would mean is that you didn't feel anything.”