A useless person with five spiritual roots? What if you add the Journey to the West method to him?

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[Ordinary person + not a loser + decisive in killing + upright values ​​+ Grand Celestial Technique + founder of a sect]
Cultivation stages: Qi Refining, Foundation Establishment, Golden Core, Nascent Soul, Spirit Transformation...
Main character's cultivation realms: Refining Essence into Qi, Refining Qi into Spirit, Refining Spirit into Emptiness, Refining Emptiness into Dao, Pure Yang Celestial Immortal
Young Chen Chunan transmigrates to a world of cultivation.
Unfortunately, his aptitude for the five spiritual roots meant his cultivation progressed slowly, leaving him with no hope of reaching the Foundation Establishment stage.
I told my sister that I suddenly had the idea to try the internal alchemy method from Journey to the West.
Only after studying it did I realize that the ancients had long ago hidden the true cultivation method of the "Great Celestial Immortal Technique" within the chapters of Journey to the West.
From then on, Chen Chunan embarked on a brand-new version of cultivation. Since it was difficult to borrow external methods for cultivating the five spiritual roots, he decided to seek them internally.
Cultivate your mind and character, understand the principles of lead and mercury, tame your wandering thoughts, and advance through accumulated effort.
Identify the five thieves, return to the five virtues, control the six desires, and accumulate virtue through good deeds.
The introduction is insufficient; please proceed to the main text.