Rey is an autodidact. She has been on her own so long, that is just her way. I love it.
Only to a point. I don’t mind that she has fighting skills, or even heightened intuition as a result of her particular circumstances, but she ‘learns’ Jedi mind-tricks and MAJOR levitation skills immediately and without a shred of effort. She channels the Force in order to defeat Kylo Ren (a trained Force user) after only having heard about the Force that very morning (which, by the way, was because someone told JJ that Rey need a big ‘moment’ rather than being the result of a considered piece of storytelling). That’s fine - the sky is the limit I suppose. But to argue that this fits seamlessly with established lore is absurd. Yes, the lore has grown and evolved from day one. But training and discipline were always a big part of it. Luke says to Leia “you have that power too - in time you’ll learn to use it as I have” as opposed to “you have that power too - and it’ll appear like magic by tea-time. Now go levitate that broom…”