You may have made a promise to someone that you are no longer able to fulfill. Although you made your commitment with the best of intentions and with the best knowledge you had at the time, things have changed. Because you are a conservative and reliable Virgo, you may be determined to follow through with your promise even though it will cost you dearly. But you would be better off simply explaining the problem to the other party involved, rather than knocking yourself out to do something that won’t reflect your very best. If you explain, you will be met with understanding.