COVID-19 is a deadly disease and a real disease. However, the vast majority of people become infected with COVID-19 live and fully recover. While it makes sense to take precautions, it's important to know your risks, especially if you are of a particularly vulnerable subset of the population which includes but is not limited to the elderly, those with chronic disease such as obesity or diabetes, and immunosuppressed individuals. You can also actively manage your risks as well. See the first two choices on the homepage of this website. While life itself offers no guarantees, you are not totally at the mercy of this virus. You can take positive action.
When it comes to coping with fear regarding COVID-19, it is important to limit your exposure to the news and social media. These two organizations have it in their financial interests to keep you engaged and watching. Fear is a tool that they use.
The infection fatality ratio of influenza (the flu) is often quoted as 0.1%. It isn't until at about age 50 that the fatality rate of COVID-19 is about the same. And even then your odds are very good.