If there is no instructor at your club I would change to another. As an alternative have you thought about taking some holiday from work and doing a block course at a flying school away from where you live.
I split my PPL between 2 flying schools several hundred miles apart from each other and learnt on 2 different aircraft types. The school in the area away from where I lived taught me over 3 trips 2 of the trips were a block of 2 weeks with a long weekend as well. I feel I also benefited from training in a block and it probably reduced the number of hours needed to complete as well as saving me money. The one possible drawback I have found is I fell in love with the area of the school i did the blocks at and now want to move to the area ASAP