CBT is nearly the opposite of venting. Venting is just pouring out raw emotion, no confrontation.
Venting is "John is an asshole who couldn't find his way out of a wet paper bag. I hope that fucker's entire dick just falls off. He doesn't deserve jack shit."
CBT is more measured. You acknowledge the feeling, but you separate yourself from it. "Yes, I'm mad. I'm mad because of THING. THING upsets me because I believe it should be like THIS. My options are THESE."
Venting is letting your emotions drive your actions. CBT is letting your reason temper your emotion. You control your actions in spite of your emotions.
Venting is "John is an asshole who couldn't find his way out of a wet paper bag. I hope that fucker's entire dick just falls off. He doesn't deserve jack shit."
CBT is more measured. You acknowledge the feeling, but you separate yourself from it. "Yes, I'm mad. I'm mad because of THING. THING upsets me because I believe it should be like THIS. My options are THESE."
Venting is letting your emotions drive your actions. CBT is letting your reason temper your emotion. You control your actions in spite of your emotions.