For anyone that’s been to a therapist, what should I expect?

gopackers2002
I’ve been meaning to go to therapy for about 3-4 years but now chose to give it a shot. What should I expect from it? I’m kinda expecting them to try to get to know me and stuff but is there anything else? Also I checked online and apparently there’s a thing called a “emotional hangover “, is it common?
For anyone that’s been to a therapist, what should I expect?
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