well my neptune is in 12th house,
Neptune in Sagittarius
Sun Square Neptune
Saturn Sextile Neptune
Neptune Sextile Pluto
what am I ?
Start with Neptune sextile Pluto. There are a HUGE number of people who have that aspect. Why? Because during the latter half of the 21st century, Pluto drifted inside Neptune's orbit and move faster. In the late 40s and after that Neptune slowly pulled into the sextile position. It was still moving faster. It stayed close to sextile for years. Then Pluto began its "faster than Neptune" period, caught up and REFORMED the sextile. That happened when you were born. Right now the sextile is AGAIN forming each summer, closest during July or early August, I think. It will form an exact sextile again in the summer of 2026.
Get the idea? Before giving any aspect involving generational planets any personal significance, you want to find another planet that aspects both. You have one, Mars, which is semi-sextile both planets. However, since this is not a major aspect, no one is probably going to agree on what (if anything) that means.
Saturn? Well, it conjuncts a slow planet only ever 30 years or so. Actually, it takes a bit longer. There have been times when Saturn has conjuncted Pluto when this conjunction made very difficult aspects to other planets. That's not really true for you. Saturn is semi-sextile Sun. Again, minor aspect.
Anyone born close to the time you were born has Saturn/Neptune sextile Pluto.
If I were looking at any potentially difficult aspect to Neptune, I'd look first at the Sun/Neptune square. But that's not too different from Sun/Neptune conjunct, which I have, and I also have Neptune conjunct Moon.
Before jumping to the conclusion that you are either deceptive or lively in a perpetual fog, I'd be more likely to think that you like to have facts presented accurately, plus with Moon in Leo, it might not be even fun to "be in the spotlight" while people are looking at you (your chart).