Yeah definitely - she really really needs to get off Twitter etc - and stop doing interviews about her "truth" for sure.
I do think her voice is the best that it has ever been right now though. I never liked her music much when she was younger - she used to sound so nasal, and her music was, with the exception of 'Blue,' generic country-pop.
Her last two albums were really really good though - her singing was amazing and I'm not even much of a country fan. ETA: she received great reviews on the last two albums too - which is how I found out about them (I think it was through the new york times or something).
I guess though that as long as she keeps prioritizing the easy paparazzi money she must get through the tabloids over everything else, her music career will inevitably suffer. She really does come across as a joke, unfortunately - it's sad because she really does have an amazing talent.