Reborn as a tiger, what's wrong with me being more self-disciplined?

[Exotic beasts + Wild start + Growth flow + No heroine]
Cang Nian was reborn as a newborn tiger cub deep in the snowy mountains of Northeast China, but he was much smaller than his brothers at birth and almost died.
Fortunately, the system cheats that come with rebirth are late but come!
[Ding~! Crawl 1m, crawl skill proficiency +1! (1/100)]
[Ding~! Drink 100ml of milk, drink milk skill proficiency +1! (1/100)]
[Ding~! Shit once, shit skill proficiency +1! (1/100)]
[Ding~! Pee once, pee skill proficiency +1! (1/100)]
No matter what you do, there is a progress bar for skill growth. As long as you are hardworking, any skill can grow into a magical skill!
From then on, Cang Nian worked hard to train, and unknowingly grew into an unprecedented super tiger king!
Who said tigers can't be self-disciplined?