Agree. Go back and ask yourself what your motivation really is.
There are far cheaper ways to fly than a PPL on your average spamcan. They can be just as much fun, but equally there are some limits (long-distance touring is generally a bit harder to do, for instance).
On the other hand, there is absolutely nothing wrong with continuing what you're doing now. As long as you are open and upfront with your instructor about your situation (not enough money to continue at a reasonable pace, not necessarily interested in going solo quickly, but just wanting to have fun).