Which one you feel is more painful?
Losing money or missing a great trade?
Losing money or missing a great trade?

Quote from vegasoul:
I think missing a move is a much more serious problem than losing money. Losing money is a integral part of trading and I think to survive as a trader, you have come to terms with it sooner or later.
For a system trader, Missing a Move means not taking a signal
and it suggest psychological issues and/or disciplinal problems.
Instead of just losing money, problems like these is going to costs you your trading career.