Upon returning from God's Origin, Alex threw himself into cultivation and alchemy. He did one thing or the other every day, wasting no time on almost anything else.
And so, in just 5 years, he managed to break through once again, reaching the Immortal Ascendant 7th realm. He slowed down his cultivation only then, focusing his time on Alchemy and some other cultivation.
He needed to keep his body and spiritual energy equally strong as well.
His Alchemy improved quite a bit during that time, letting him do more. He practiced other things, but among them, he focused on making different pills in the same cauldron at once the most.
That seemed more important to him not just for the tournament but for everyday Alchemy as well.
Silvermist came to check up on him from time to time, giving him positive feedback on what he was doing. Alex was more than happy whenever he got praise from his master.