What age is it now?
Everything is calculated by the hour.
For example, for piano learners, an hour is at least 100 yuan;
For tutors, college entrance examination students spend at least 200 yuan an hour;
Even if you hire an hourly worker, it will cost tens of dollars an hour.
You must learn to swim, because you can protect yourself in the water in the future, which is closely related to your life!
If private education is good, 150 yuan is not very expensive for one hour.
You'd better ask how many hours you can study and ask more people who have studied there before.