Afraid Id have to echo the sentiments of others on here ENJE. Going abroad to do a PPL is, from my experience, is a false economy. It does take time to get used to UK conditions which are very different from North America. The US may be a non starter because I think it takes some time to get a visa.
Unless you strike lucky with the weather, I think it is unlikely that you will have enough flying time in the UK left before the onset of winter weather.
My suggestion to you would be to wait until Feb/ March when the weather starts to improve and then do the PPL at the weekends. I know this is all very frustrating and not exactly what you wanted to hear but before learning to fly try and plan things out as much as possible. You will save yourself a small fortune.