Hey man, welcome to the forum.
Here are my comments:
Sit back have a drink (bit) I didn't think that was the chorus, I thought that was your verse.
I can't keep on losing sleep (bit) I thought this was your chorus. I was also wondering why you had called it Brand New and not Over You. Until after your instrumental Middle 8, then I realised that in fact it was the other way round and the Sit back have a drink was the chorus and not the verse.
Therein lies the problem, there's no wow-transition from your verse to the chorus, in fact they're on a par. And as such it was hard to realise what the chorus was. Have you used the same chord progressions for the chorus that you used for the verse?
On the whole though the song was really nice to listen to, and you have a gorgeous tone to your voice. Very James Blunty. As for demo stage, it sounds pretty perfect apart from you not being able to pronounce Cigarette at the start. I think you've got a good chance with this in the contest!
Sorry to hear about your divorce, that's pretty rough. Were you married long?