Beyond personal experience, this colours collective consciousness. The earliest human writing that we still have record of is only 5000-6000 years old. There is archaeological evidence os civilization going back 10,000-15,000 years. We've found settlements at the bottom of the English Channel from ~8,000 years ago [1]. This should tell you something: we've seen massive sea level rises in recent Earth history.
The last 10,000 years have been relatively stable, abnormally so. There are a host of events that affect life on earth. Just to name a few: solar flares, meteor/asteroid impacts, supervolcanoes, earthquakes, magnetic pole flipping, rapid climate change (cooling and warming), sea levels rising and falling, Milankovitch cycles (ie eccentricity, axial tilt and precession) driving long-term climate, cosmic events (eg gamma ray bursts) and so on.
Some of these things are relatively common too in the sense that they've occurred multiple times in the short span of civilization. Beyond these superflare events there are others that cause massive death and destruction (eg [1]).
I guess my point is the best we can do is put off the next such event temporarily. There will be another Ice Age, for example. There will be future mass extinctions. Yes, we're wreaking havoc on the planet but anything we're doing now still just feels like tinkering on the smallest scales.
Ultimately we're just going to have to learn to adapt.
[1]: https://www.livescience.com/1759-stone-age-settlement-englis...