Ignoring the vast subcontinent of the Id does not make it go away. And maybe Nietzsche was right. Maybe the conscious does distort the real truth.
So what are the implications of this?
My advice about sex is to be in a Lithuanian yeshiva and learn Torah until you are offered a shiduch.
That seems to be the best idea because outside of the world of Torah, girls aren't very good.
For a good marriage it is best that the girl have two characteristics: (1) Jewish, (2) daughter of someone who learns Torah. The guy--should learn Torah. Now in Israel there are learners, and guys who learn half and work half, and guys who work. My approach was to learn and do a bit of science on the side, but at this point I might agree that half Torah and half work is better. I admit I am not sure. It is hard to say which path is better.
Rav Shach held -learn until marriage and then if one needs to work then fine. My parents held one should go to university and prepare for a honest vocation.
It is hard to know what to do as a rule. I was myself in Mir in NY before I was married and after that also. And later I went to Israel when Rav Ernster invited me to join his kollel in Safed. Learning Torah is important but there is something about the way the system is set up in Israel that annoyed me. It was like it was considered a 9-5 business and it was run in such a way. I did not want any part of a system that was making Torah into a money making factory so I left that kollel for all the seven years I was in Safed. The way I see it is accepting charity to learn Torah is an argument. The other rishonim disagreed with the Rambam on that point. They said it is allowed. But to have a situation where one says if you come in at 9 to 5 and learn we will pay you-that makes Torah into a business. And I never heard of any Rishon that allows such a thing. So I threw myself on God's mercy and hoped he would support me without my doing something I thought was against the Torah. And he did help me until I left Israel.
After I left Israel and my wife left, I was no longer socially accepted and could not even walk into any yeshiva or kollel without being thrown out from either the first moment or a day or two.
Now I see most teachers of virtue (Torah) as being in it for the money,- because there is the problem that the students of teachers of virtue are unjust and not virtuous. So there must be something wrong with the system. [That is if the students turn out bad, that must say something about the teachers. Virtue and Torah I think are being betrayed.]
So unless we are talking about Ponovitch or the great Litvak yeshivas in NY, I have come to think of the whole system as terrible and not loyal to Torah. I see the Orthodox world as being organized around Compulsive Obsessive Schizoid leaders that are excellent at doing rituals and not connected with Torah except in appearance alone.
Since then I hope to merit someday to learn Torah. And I contemplate, "What went wrong?"
The answer of Nietzsche seems best: "Consciousness distorts Truth."
That means Nietzsche thought the Id has special access to the truth but it gets distorted as it gets to the surface of consciousness. The consciousness it to him just an phenomenon of the representation--not even of the Id. And clearly this is what Reb Israel Salanter was saying in his Igeret HaMusar. Learn Musar strong an long enough and it will penetrate into the Id and that will allow the Id to bring forth the un-distorted truth.
So what we have is apparently an argument between Rav Shach and my parents. But I think we can minimize the area of the argument to a small space. No one is disagreeing with the Rambam about the importance of learning Torah, Physics and Metaphysics as these last two were understood by Aristotle and the Rambam. And Rav Shach is agreeing also with the idea of a vocation. I think for all practical purposes the area of disagreement approaches zero if we consider these facts.