You shouldn't regret such decision. You said so yourself, it's an emergency, I don't know what it is for, but for example to save someone's life, or due of a payment or something. Whatever it is, as long as it's an emergency (urgent), or any significance at all don't regret it over money. Why? Money can be earned again and again--life(?) you can't, time(?) you can't.
For as long as we are still living then there is nothing to regret about, we should handle our emotion and learn to let go in times that we can face situation just like this, there is no perfect investors or traders, we are all making mistakes, we all learn, we do mistakes again, learn until such time that we become experts and can easily read the market and the project flow.
Yup because we can start all over again when we alive. Loses can be recover but for now time must be important to do and also there are a lot of investor do invest because they take risk to get an easy and fast money for them to gain a money with a high value because of too much greedy and at the same time they believe in luck.
Believe in luck will not help us always to make money, sometimes we should act based on the market situation. Sometimes we may stuck, but we have to manage them and convert them into profits, that's how a trader should think smartly, in every part of trading there is a risk involved.