Sometimes, a break and doing something different is a good idea.
For example, a lot of people get bogged down flying circuits. I recall spending god knows how many hours doing circuits in the PA38. After you have sweated about a pint, the learning value diminishes rapidly, but the rate of £££ leakage just carries on at the same rate
At that point, which I have seen many pilots reach, one may as well go for a flight somewhere interesting. OK, this can be seen as making the PPL more expensive overall, but it also makes it a lot more enjoyable.