I know how you're feeling, I'm at 7 months with what feels like no improvement and feeling pretty low about life. It's hard to be optimistic, I know, but I'm dealing with it by trying not to think too much about the future, keeping busy and at the same time accepting (I've only just started to come to terms with this) I have cognitive limitations and I may need treatment top improve them.

I've found this very difficult to accept, I'd just hoped I could sit back, get on with life and gradually they'd get better on their own.

Now I'm (still) seeking a diagnosis and hoping that through that I'll be able to start some treatment.