>>76379723 (OP)
From personal experience and anecdotes, pretty much ever psychiatric drug has wildly different effects depending on the individual. Anything that affects brain chemistry, even stuff like GLPs. For some, it can be an elixir that makes them instantly functional people, while for others it turns them into zombies. The "purposed" effects of psych drugs are based on averaged findings in studies, but the subjects of those studies all have highly varied experienced, making the "average" finding functionally useless as a predictor.
All this to say who knows, but there are no permanent effects of SSRIs or really any psych drug. If they make you feel like shit, just stop taking them.