Count what has survived your scrutiny: it is a very short list
Count what you actually believe after everything you have taken apart, and the list is short and held very firmly. Neptune in Scorpio in the 9th house works that way: nothing is credited until it has been tested, and what does survive is trusted completely.
Neptune moves slowly enough that the longing for what lies beneath belongs to a crowd of people your age. Where it collects is individual, and yours collects in the 9th house, on belief itself — so the excavating is aimed at doctrines rather than at people or money.
A truth that would hold after everything was removed
What you want is whatever remains once the comforting parts, the social parts and the unexamined parts have been stripped away. That is a serious project and it has a hazard built into it: the assumption that what is left after stripping is more real than what was removed. Sometimes the warmth was load-bearing, and taking it out does not make the structure truer.
They hear the scepticism as contempt
When you question somebody's framework, you are usually interested rather than dismissive, and to them the difference is invisible, particularly where the framework matters to them. Say what you find valuable in it before you press on the weak point. It is not a concession; it is the only way the questioning reads as enquiry.
Suspicion accepted in place of actually looking
Assuming that an account is concealing something is not the same as investigating what it conceals, and the assumption is much cheaper. It can pass for depth for years while producing nothing. The test is whether you have ever changed your mind as a result. Where the answer is no, the suspicion is a position rather than a method.
Write down what you actually found
Your investigations are private and largely unrecorded, so the conclusions live only in you and shift over time without your noticing. Write them down: what you looked into, what you concluded, what you would need to see to change it. It makes your own reasoning available for inspection, including by you, which is the point.
You were changed by what you found out
Your significant turning points came from discovering something — about the world, about an institution, about how things actually work — rather than from an event happening to you. That is an unusual engine and it means each discovery costs you a version of your life. Give the aftermath as much time as the discovery took. Rebuilding is the slower half.
You are the one people bring their doubts to
When somebody's framework starts to fail, they come to you, because you will not be shocked and you will not rush them back into it. That is a genuine service and it makes you the receiving end of a great deal of quiet crisis. Notice the accumulation, and keep somebody of your own for the same purpose.
You need a partner who does not need you to agree
Where somebody requires shared belief as the basis of closeness, you will eventually be dishonest or eventually leave. What works is a person secure enough to hold their own view while you take it apart affectionately. Say early that questioning is how you engage rather than how you attack. It saves an argument that otherwise recurs indefinitely.
You found out something the family had not discussed
At some point you worked out or discovered something about your household's history, beliefs or arrangements that had been left unexamined, and knowing it changed your position among them permanently. Whether to say it is a real question with no general answer. What is worth deciding is whether you are keeping the silence for them or for yourself.
You investigate rather than consult
Faced with something in your own body, you research it deeply and distrust the first professional opinion you are given, which occasionally saves you and routinely delays you by months. Both effects are real and only one of them gets remembered. Get the opinion first and investigate afterwards, so that the delay happens after treatment has started rather than instead of it.