Why is my horoscope so different from my personality?

It's upstairs. Constellations are calculated according to the solar calendar, because they are western, of course. But if you count your personality, you have to count your entire astrolabe.

I gave you a rough calculation, because your Venus and Pluto are both in Scorpio, Venus is the main carrier of love, and Pluto represents doubt, insecurity, loneliness and self-reliance, anxiety, uneasiness, distrust and fear about taboos.

If a person's Venus and Pluto are the same, then this person's personality is more like this constellation.

Some people like that constellation, while others don't. That's the reason.