How does one ween fluoxetine without permanently damaging ones serotonin receptors?

Easily with doc help. Fluoxetine has a 5 day half life in the body, which makes withdrawal problems rare, and tapering not necessary. But do do this with the advice and consultation of your doctor so that you don't risk the return of the symptoms it was helping with. Sometimes you don't realize how much a medication was helping until you lower or stop it.