About: How the Torah is perceived by us.

Peace and blessings,
The prevailing perception among observant Jews is that our Torah is actually the 313 commandments and they are the essence of the Torah. And apparently this is made difficult for me:
A. What is the need for the stories of the entire Torah, expanding and deepening matters (stories of the patriarchs, stories of the building of the Tabernacle, the journeys of the Children of Israel, etc.).
on. Things have a nefkmn – people tend to evaluate actions only because they belong categorically to certain mitzvot. For example: If I do such and such an act, I will thereby fulfill such and such a mitzvah. Although from the stories of the Torah we see that this is not the case, the patriarchs did actions even though they were not mitzvot because they saw them as valuable actions: Abraham qualifies many with faith in God (apparently not because there is a mitzvot of faith), Abraham also does charity, etc., and other actions of the patriarchs that do not need to be detailed.
third. Does the Rabbi generally agree that the Torah itself is essentially 313 commandments?
I wanted to know what the rabbi thought on the matter. Does the rabbi agree with the things or disagree?
I would love to hear.