Question: How does Kabbalah relate to the feeling of guilt that arises in me for not dedicating enough time to its study today?

Answer: You should not engage in self-reproach. It is not good. You just need to make peace with the Creator. That is, thank Him for what He gives you, for uplifting you, correcting you, and leading you forward. That is all.

More positive thoughts. Complaining to the Creator will not help you. Later, you will see that you were wrong.
[332442]
From the Daily Kabbalah Lesson 7/19/20, “Connecting into One Soul”

Related Material:
Turn Only to the Creator
The Day Of The Creator
How Can We Ask The Creator For Anything?