Is it essential to mention all sins when repenting?

The testimony of Tawheed includes all three types of Tawheed

He acquired unlawful wealth and bought an apartment with it. Does he have to get rid of it?

He committed zina with a woman; does he have to marry her in order to conceal what happened?

If a disbeliever becomes a Muslim but is still persisting in a sin, is his Islam valid?

If someone goes astray because of his defiantly disobeying his parents and their praying against him, can he ever be guided?

He worked for his father in return for payment, and he took some of it and used to spend from his father’s wealth without his knowledge

He went to a fortuneteller and is asking whether he can repent and how he may repent?

Is punishment from Allaah one of the consequences of sin?

Every time he improves in worship, he goes back to sin