Act, don’t react.
This advice (taken from a tv show) is pretty good.
In the past I would wait for things to happen, be surprised, and then react to it. Most of the time I’d look back on it and go “Why on earth did I do THAT!”
(This is especially the case when I’ve found myself talking to a guy I really like.)
Think first, even when you feel pressured, stressed or nervous. Just look at the situation and think “What should I do next? What might happen after that?”
Then you can look back on a situation and say, “Even if it didn’t turn out well, I still did what I thought was right. What can I do better next time?”
Do you act, or react?