It’s not retrofitting to say Luke was whiny and unfocused. He was whiny and unfocused in 1977. Just because Rey defeated a seriously wounded and emotionally compromised Kylo Ren does not mean she is as skilled as him, much less a master.

Just because Rey does something, doesn’t mean anyone can.

Is her journey very different than what we’ve seen before? Absolutely! But it’s crazy to think every force user in the galaxy took the exact same path. I like seeing something different. I doubt her way is all that original considering all the Force users that came before her, just we have never seen their stories. I certainly don’t mind being told a story I haven’t heard before.

She is searching for an identity. I think that is a side effect of her isolation. The same environment that gave her confidence and focus in order to survive also left her with a feeling of loneliness and not belonging. I think she has her head on right and sees her place in the Resistance at the end of TLJ. Can’t wait to see what happens next!