I really useful tip I got from someone at my club (FIDE rated -1950) is just to hold it in. Don't move too quickly, and you will avoid blunders. Just hold it all in until you've evaluated the position properly.
Analyze my epic fail!
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I don't see how 6. exd4 would expose your king for the rest of the game.
Also, was this game blitz?
Here's a particularly painful game I just played, and I've annotated it with my thought process throughout. Let me know what you think! Where did I go wrong in my analysis, any suggestions are welcome.