At work I'm being reassigned to a coveted position. I'm so happy about this, and I'm getting a lot of positive attention from my coworkers. My mood has been high, obviously, but I've been good about self awareness and taking time to calm myself down.

I'm worried, however, that I will crash once I settle into the new job. I have a long track record of huge depressions after positive changes, like when I got married, moved, got new jobs, etc. I'm not sure how to prevent this, and I'm worried it will affect my ability to learn the new job.

Do you guys crash after positive change? How do you cope? Is there anything you do to mitigate or prevent it?