She'll watch as I throw a ball (even a squeaky one I make out is super exciting) but isn't interested in getting it - I tried Frisbee, rope pulls, kong tennis balls, rubber chews, 'bacon flavour' toys, crinkly sound toys and all manner of sqeaky toys.
The only toys she interacts with are tug type toys (but she aims for and gets your hand) and cuddly soft toys that she likes to attack, stamp on with both front paws and then tear to pieces.
If I'm not specifically interacting with her 1-1, she'll tear the ivy off the wall, dig up the plants, counter surf in the kitchen, chew the skirting boards or bark at the birds. She never plays with her toys by herself. She'll do all this after a walk, after training, after having an enrichment activity - there is no 'off' switch.
If I ignore her (no vocal or eye contact) she will stare intently at me, then bark at me and chases her tail at 100mph, clearly frustrated.
She will lie down and eat a rawhide bone for 20 minutes until deciding it needs to be buried.
I'll look up how to do scentwork, she loves to sniff. She is very food orientated, it's just if there's something more interesting (which is anything/everything) then she's off and unfocused.
Positive training has always worked for my dogs before; they would very rarely get told off, I would swap, re-direct or distract and was consistent with that. But none of that works with her. She's instantly back to what she was doing.
I want to say I don't think her behaviour is her fault, at all. She can't help it, she's being a dog.
I feel like I'm completely failing her and very close to breaking.
I really appreciate the replies, and wish I could be more positive with the suggestions - I know I must be coming across like a pessimist.