What would make you feel worse?

Here's the scenario. We've all watched the nice climb silver has made since Brexit.
What would make you feel worse? Selling at $20 and then watching the price rapidly climb to $21?
Or not selling at $20 and watching the price quickly fall back to $19?
What would make you feel worse? Selling at $20 and then watching the price rapidly climb to $21?
Or not selling at $20 and watching the price quickly fall back to $19?