I’m sure we all wish Mattblues90 all the best and hope for a good outcome. But, if nothing else, let this serve as a warning to others. I keep banging on about it but this type of carry on is the reason why.
Find a trainer who has their own reversing area - correctly surfaced and marked. Ensure there is unrestricted use. Many trainers pay by the hour for the use of a bit of redundant airfield. It just isn’t the same. The travelling to the area isn’t, of itself, a huge issue as you need to drive anyway. But it might be more useful to be driving in the area in which you’ll be taking your test.
Please, buyer beware.
And all the best to Mattblues90.
Pete 