How much flying experience do you have already?
The greater your experience base, the less your skill will deteriorate between each lesson. Of course the more you get rusty between each lesson, the more of each subsequent lesson will be spent regaining the lost skill before proceeding to the new content.
This effect is most marked in your ab-initio training, especially in the pre-solo stage.
If full time flying is not a realistic option then the next best is to do full time portions eg to first solo consolidation or start of nav. training, then another concentrated batch for PPL level nav. and so on for each stage with a break between each for work commitments.
If doing this through out your training is still problematical then at least try to do it up to first solo consolidation ie a few solo hours past first solo.
You would reach the standard eventually if you didn't do any of this, but there is a very high probability that your eventual flight time to achieve a standard will be higher, costing more $$$.
Use the non-flying periods to study the theory side. Try to get through at least enough theory to cover the next stage, further if you can. Don't fly if you don't know the relevent theory. Bumbling around in the air is a very expensive way to learn why you should do xyz.
Unless you particularly wish to go for yippee flight between each full time/nearly full time stage (the work 'breaks') then don't bother flying. Your skill level will return within a couple or few hours when you start each next stage.
The more experience you have the longer you will be able to not fly before a noticeable skill degradation will occur and the quicker your skills will return once flying is resumed. This will apply during your training, not just once your licenced.
Good luck!