Is a person's character really defined by the constellation to which he belongs?

I think the horoscope is still a bit reliable, much more accurate than those tongue-full fortune tellers in China! The date of birth has something to do with people's temper, but these are congenital factors, and fate and temper can be changed and enriched the day after tomorrow. I have also observed the performance of people born in each constellation. Admittedly, most people are similar, but they are by no means static. The tempering of life will make a person understand many truths and accept some lessons, but it is difficult to completely change his basic character.