Don't think of the CPL at all.
Expand your experience as a PPL and let the CPL instructor provide the correct training at CPL level when the time comes.
If you have 50 hours to fly then use those 50 hours to go places. By doing so, you will;
a) Gain experience that will be a good foundation for the CPL course
b) Show prospective employers that you have actually flown from A to B
c) Come across a few mistakes that you will learn from.
With 50 hours, you should be able to cover a large part of Europe in a round robin or two. Alternatively there would be a lot of different "there and back" flights.
Make sure that you have the required cross country experience for the CPL before the 50 hours ends.
Better still, find another person in the same situation and you get to travel further.
Finally, don't just follow the GPS from A to B. Use the navigation techniques you used for the PPL. You will be amazed how much better your navigation becomes with some regular practice over unfamiliar territory.
Enjoy!!
Regards,
DFC