Hi mark,
Thank you kindly for your reply and apologies to all for my not replying. Had a busy time recently.
Firstly, the question 'why'? I can respond with 'why not'? Becoming single recently and discovering a passion for all things Polish, I keep thinking that maybe it's time for a mid-life adventure. I have a good career I can always come back to after a break. As people keep telling me, "Go do it, otherwise you'll regret not having taken the opportunity".
I'll look again at the English teaching. But ideally, I'd be looking for an English speaking computer programmer job, which is what I do best.
As for the learning Polish, thank you so much for the encouragement saying it's the hardest language to learn. In fact, many people say that, which just makes me all the more determined. So, I study everyday on the train to and from work, at lunchtimes and in the evenings. My Polish friends say I am learning alarmingly quickly.
So.... now all I have left to do is build a lot of courage and take the plunge.
Tony