Only scratching the surface here, but there are 2 aspects of worst: there is physical comfort and mental/emotional comfort. Both are important, but in many ways mental/emotional comfort is more important.
Some things in life WILL happen, such as the death of a loved one. Such things are very difficult to bear, but some people adjust easier than others. There are things that MAY happen to you, such as you experiencing divorce, loss of job, failing health, house burns down, etc.
There are things that may happen to a region, most notably very severe weather such as hurricanes, tornadoes, earthquakes, volcanoes, etc. Additionally, there are human-caused things such as riots, spikes in crime, terror attacks, etc. There are things that can happen to you personally too.
My thinking is that you have to assess your own situation and think about the calamities most likely to affect you. Then think about what you can and can't do to mitigate the risks and discomfort associated with them.
One of the things that can be very beneficial is to go tent camping a couple of times a year. This is especially enlightening for those that have never done it. You will quickly learn how to make yourself less uncomfortable in the absence of electricity and comforts of home. Hopefully, you pick up a little self confidence to handle the situation.
Educate yourself on practical steps, skills, and techniques that you might apply to situations most likely to impact you (and your area). Practice them occasionally.
Some people may panic with loss of electricity for an extended period of time. It can be helpful to remind yourself that humanity existed for thousands of years without any electricity. However, if you're completely dependent on it and have no confidence to adapt, that reminder may not be helpful in the moment.
There's an incredible book about personal survival and the will to survive. It's "Unbroken" by Laura Hillenbrand and it tells the true story about a WWII B-24 bomber crew that went down in the Pacific and how one crewman (the focus of the book) survives being in the water for an incredibly long duration (something like 43 days) and is captured by the Japanese and then his survival as a POW. It's kind of a long book, but it's immensely powerful.
Lastly, and perhaps most importantly, faith can be a huge asset to you in troubled times. However, don't wait for the troubled times to start before you start cultivating your faith. An established and well-practiced faith can really help to pull through some of the most difficult situations.