CPEC will make profit over time and its not a short term gain venture. Some projects are set up for the good and betterment of the countries and for their people so view it in that light.
Think about it in probably 10 years time Chinese exports will be taking much shorter time to arrive at their destinations and with the proposed oil pipe lines US won't be able to stop flow of oil to the China. While Pakistan own economic zone goods and materials can be transported easily and common man of Pakistan can travel from A to B much easily. There are plenty of bumpy roads ahead of us but with the good will between both countries it will eventually be over come.
When you take a loan it has to be paid within a duration. your timeline does not mesh with the terms of the CPEC loans
There are no oil pipeline in the $65 billion CPEC projects. Neither are there any serious proposals to ship Chinese exports via Pakistan