I think I prefer the fact there's not much support in the Bois, as it's at least a nice park to run through. It's just a killer in that you know you're nearing the end, but the mile and km markers suddenly feel like they're far further apart than they were earlier in the race!
Plus my pet hate in those busy final stretches of a marathon is the "nearly there" shouts from mile 20 onwards. That certainly brings out the "and now I will kill you" thoughts.
I'm having a big battle with myself some side says I haven't done enough long runs and really struggling to trust my training, And the other part of me just says "stay calm trust in the training plan" Haha.. any handy tips from anyone would be hugely appreciated?
I think finding what works best for you is just a case of trying out different plans over the years until you find something that you find suits you and your lifestyle.
I think periods of doubt during training are perfectly normal. Try and focus on the training you've done. It's easy to focus on those couple of missed training runs and not take in all the training you have actually done.