Worry is the result of an overactive imagination. It’s habitually projecting the future in a negative way, without a solution.
At best, worrying is a waste of time because we’re not solving the problem. At worst, it’s self-harm because it not only disturbs our mental well-being, it negatively affects our physical health. It also prevents us from living in the present and actually makes us less likely to make rational decisions.
There are actually worse things that could happen to us than the things we usually worry about. Do what you can to prevent bad things from happening, but stop worrying about potential outcomes that are beyond your ability to prevent.
If it’s a problem that can be prevented, develop a strategy and get back to living.
Do the best you can with the cards you’ve been dealt, and keep learning.