The instruction says that first one has to study the Torah, Mishnah, and Talmud, and only then embark on the Kabbalah studies. This is correct provided one already deserves to study at the level of Lishma, that is, if one has corrected himself completely.
However, one first needs to reach the correction of his soul. We exist for this purpose, and herein lies our entire work. The Torah (the Light of Correction) is given to us specifically to this end, as it is said: “I created egoism and gave the Torah for its correction.”
The order of correction is as follows: First, you need to reach the level of “Lishma” (attain the property of bestowal and love, enter into the spiritual world) in the shortest and most effective manner. Then, you are free to study the entire Torah, since the soul that you have acquired will teach you itself. Nobody will be able to tell you what to do. You will see, understand, and attain everything yourself.
From the 3rd part of the Daily Kabbalah Lesson 5/31/10, Introduction to the Study of the Ten Sefirot