When learning Torah, it is very common to do the weekly Parsha, daf yomi, etc. However, I recently became interested in learning Neviim. This, of course, is not a generally daily-studied aspect of the Torah. Are there any sources that say that one should prioritize one over the other. Specifically, are there any sources that mention whether or not one should devote time to Nach (Neviim and Ketuvim), if they only had a specific amount of time set aside?
Here's one well-known source:
"In light of this statement, the Sages said that a person should always divide his years into three parts, as follows: A third for Bible1, a third for Mishna, and a third for Talmud. The Gemara asks: How can a person divide his life this way? Who knows the length of his life, so that he can calculate how long a third will be? The Gemara answers: No, it is necessary for one’s days, i.e., one should divide each day of his life in this manner." (Kiddushin 30a)
While this doesn't prioritize any of the three, it clearly states the importance of dividing one's time, however much time that is, between all three.
Also, the gemara in Avodah Zara 19a says:
"Rabbi Yehuda HaNasi says: A person can learn Torah only from a place in the Torah that his heart desires, as it is stated: But his delight is in the Torah of the Lord, i.e., his delight is in the part of the Torah that he wishes to study."
And the Mishnah Berura also writes:
דאין אדם לומד אלא מה שלבו חפץ
Rough translation: A person should learn what their heart desires (i.e. is most interested in).
1 The Hebrew word here is Mikra which refers to all three portions of the Tanach.