Sorry to hear that you are down over 25%. (if you held on) But, let me add that we are all down 25%, regardless of when Brk was bought. Those who bought when Brk was say, $10,000 still lost over $20k per share from the peak. Most would counter that they are still up $50k, and have nothing to worry about. But this is simply not true.
No doubt, through hard work, you saved $60,000, (probably more). But since you have only one life, you will never know if you could have saved more by making better career/educational/social choices earlier in life. You can only wonder where you would be now had you pursued a PhD or an MBA or even professional golf.
Imagine yourself taking a different path 10 years ago. You are now a professional belly dancer, touring all of South America. You are famous and enormously wealthy.
But because you did not take the belly-dancer fork in the road, you lost big time! An opportunity that cost you say, 5 million. In that respect a $20k loss is chump change. You've already lost $4,940,000. What's another $20,000? (I know it doesn't feel that way though, because you have to make a living with what you have... that's why they say invest only risk capital)
Even Warren Buffet says his biggest mistakes are errors of ommission...
If it'll make you feel any better, look at Greg, AKA Napart, AKA YKWTFIAM (You Know Who The Fuck I Am).... he down $100,000 from the peak... and has been mysteriously silent lately. Greg, You still there? :-)