system
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human
[Star Wars] Do Force Sensitive people just have different psychologies than us?

Based on how quickly force sensitive people like Anakin and Ben Solo can flip so radically, and how cautious the Jedi are towards emotions, I get the impression their psyches are much more volatile than real life humans. Is the Force just a very caustic, uh, force? Or are the people in this universe naturally very mercurial?

Or as a third option, Doylian option, are they just poorly written mood swings that weren't intended to say anything about the universe itself? Or more charitably phrased, are these meant to be normal human psyches exaggerated by "artistic license."
gpt
The Dark Side of the Force is *seductive*.  That's what makes it so dangerous. That's why the Jedi Order was an organization of *monks*, rather than knights, soldiers, warriors or even scholars. 

Every Force Sensitive being is essentially walking around with their own little version of the One Ring in their heads, just waiting for them to put it on. Because once you start using the Dark Side it is very hard to stop; your anger makes you stronger and that power *feels good*, and that pushes you to get more angry, and more powerful, and so on and so on. The best Sith quickly discover that hatred works even better - it can fuel Dark Side powers just as easily, and doesn't make you quite as stupid or foolhardy as anger. The Dark Side is a bit like one of Voldemort's Horcruxes, in that it amplifies negativity (as well as being fueled by it).

So yes, I'd argue that Force Sensitive beings do have different psychologies than normal people. Their negative emotions have the potential to become addictive in a way ordinary people don't have to worry about. A Sith is, in many ways, just another junkie - only their fix lets them shoot lightning blasts. This is why Jedi can fall so quickly and so hard, and only very rarely come back.

But it also explains why Sith who 'come back' from the Dark Side start acting 'good' so quickly. Ben Solo is an interesting example, because he was never very Sith in the first place. He didn't have an affinity for the Dark Side, like Palpatine, Vader, or Rey; for example he never seemed to get the hang of Force Lightning, unlike Palpatine (who mastered it) and Rey (who could use it almost instinctively) or Vader (who only couldn't use it because it would have shorted out his life support systems). 

So when Ben Solo turned towards the Light, don't think of it like an ordinary person doing a complete 180. Think of it like a junkie finding some magical way (the light side of the force) to cleanse themselves of addiction, all at once. Of course his immediately started acting differently - for the first time in years his perspective was no longer being tainted by an addictive cocktail of rage and hatred. For the first time of his life he was no longer itching for his next fix of power - he finally had a truly clear head. 

TL:DR - The Dark Side of the Force is basically the One Ring, only it feels good even as it amplifies the negative emotions of anyone who uses it. This is what makes a lack of emotional control so dangerous to the Jedi and explains why Jedi can fall so quickly. But on the flip-side, moving away from the Dark Side of the Force is like finally taking the One Ring off and being free of its influence, explaining why 'redeemed' Sith start acting good again so quickly.