Could neglect lead to destruction?

So this morning, I was getting ready to go to school and I was deciding what I would wear. Upon moving to the right side of my closet, I noticed a whole bunch of long-sleeved shirts that I haven't even looked at in years. Every day, even through the winter, I wear a short-sleeved shirt with a sweatshirt jacket. Obviously, this choice of clothes isn't the smartest choice health-wise. However I do it anyway because it is the fashion that I have chose and the style that I like. I could get easily get sick from not wearing proper clothing in the winter.

Here is another example. Recently I had a girlfriend and I was having relationship problems. I was getting jealous too easily and it was just causing many unnecessary overall problems. It was literally making me insane to the point where I couldn't even relax. I was sacrificing my mental health and mental stability just to maintain a relationship.

Now my question is:

Could this same thing be happening to everyone in other aspects of our lives? And do we not even realize it sometimes? And could this ultimately lead man-kind down a path of destruction some day?