If you have committed yourself to a pronunciation training course or your employer has committed company funds to your professional development you must try to make it part of your life for the next two months. Continual postponing of lessons will break the continuity and you will not progress.There is a definite progression of skills -it's like a jigsaw puzzle that needs to be fitted together. Once you have the outline and the basic idea the other pieces can be slotted in more easily. Too many gaps mean the need to go over the same areas again and again, which in itself is not a bad thing but in a 10 week course you only really have 20 hours of tuition.
I recommend that when you commit to pronunciation training - even if you find it very difficult and frustrating - keep at it as it only gets easier with practice.
I don't want to include a no cancellation policy as I know people have busy lives with work, children and living in a new country, but maybe i need to just to encourage peole to fully commit to a 10 week program.