Do constellations and blood types determine a person's personality?

It shouldn't matter. People say it's dreamy, but it's all nonsense. No matter what two people are compared together, there are always some similarities. In fact, these two people may have different constellations and blood types at all.

There are only a few constellations and blood types, but for individuals, everyone's personality has similarities and differences.

Personality may be related to people's environment and acquired education, such as the influence of your parents, teachers, classmates and friends. Anyway, it has something to do with what you said.