When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.
Life is short, and it's up to you to make it sweet.
"The more you experience, the more you learn."
不要为变老而遗憾。这是许多人求之不得的特权。