It's a lack of information that OP gives if really talk about the important factor in trading, there are various factors to consider in trading and it should begin fist in yourself and ask this question?
"Are you knowledgeable enough and ready to risk your money?" It applies all factors if you can able to answer it positively and it means you are ready in trading even though you know that trading isn't an easy way of making money.
Any transaction must have its own methods and strategies, what do you think are the important factors in the transaction?
What else? Learn from mistakes and don't let them happen again?