Hey Frank. I would structure your mentality to be more long-term focused, and although corrections will ultimately happen, they won't really scare you all that much.
Most of the companies I hold, I hold them with the intentions of never selling, and a long-term thesis, often spanning a decade or longer. If the stock becomes 10,20,30,40% cheaper in a correction or crash, it just means I'll be able to accumulate more shares for cheaper prices. Assuming the thesis stays in tact, of course. Which for the vast majority of companies, especially high quality corporations like the banks, generally happens.
The only way I ever really trim/take profits is if I am over allocated to particular holdings to the point where I feel the risk outweighs what I am comfortable with. For example, I trimmed some of my bank positions at the end of the year, but this is just because my overall banking position was creeping upwards of 8%~ of my portfolio, and I like to keep it near 5%.
Once you begin to think long term, you actually start to embrace corrections. A stock trading at $60 today that dips to $40 is just a better bargain during that correction than it is right now.
The less time you have until retirement, the more conservative you do have to be and taking profits does get a bit more viable but if your time horizon is 10,20,30 years etc, just buying strong companies and holding them long-term is generally the best strategy.