I agree @Rocket6
I've been managing my own portfolio for more than 10 years now and when I think of all market corrections I've experienced in that time, I've still done OK and have managed to grow my wealth by hanging in there. Sometimes it is easy to be swayed by the Bad News Bears and act rashly.
When it comes to spread sheets, valuations and deciphering company reports my skills are rudimentary but I figure having a long term focus and knowing things
will eventually improve is important too. When times are tough I try to ask myself where do I think the companies I own will be in 5 or 10 years and that usually helps.