Hi Pete,
I have been very lucky, which is the main reason I've managed to progress through training so quickly.
My only advice is to try to find someone who:
a). You trust (sounds like you're there with that one).
b). Fairly local. That way you can commit 100% & be at the field anytime the weather looks promising.
If the weather looks good try to get time off work & get down the field training because, if you leave big gaps, you tend to forget bits & then you need to work half a day or so to bring yourself back to the point you left off, which is frustrating for everyone.
I'm lucky because I managed to beg, borrow & steal time off work & generally the weather was kind to us (especially the Indian Summer).
Good luck with it - looking forwards to another training blog!
Phil