just had the dream. it was scary. do dreams of plane crashes signify anything? anyone?

According to www.dreammoods.com it means:

Airplane Crash

To dream that a plane crashes, suggests that you have set overly high and unrealistic goals for yourself. Your goals may be too high and are impossible to realize. You are in danger of having it come crashing down. Alternatively, your lack of confidence, self-defeating attitude and self-doubt toward the goals you have set for yourself is represented by the crashing airplane; you do not believe in your ability to attain those goals. Loss of power and uncertainty in achieving your goals are also signified.