Is there any real way to measure my past life?

Scientifically speaking, people have no past lives, so there is no scientific instrument to measure a person's past lives. The so-called past life file you drew is fabricated, and the past life measured by the divination wizard is not credible and harmful. You should believe in science instead of superstition. But as a pastime, it doesn't hurt to play occasionally, but don't take it seriously.