With only 8 years to live at the start, I'm going all in.

Ding Yi, who had inexplicably transmigrated to another world, had become increasingly terrified these past few days. He discovered that the kind elderly couple who had taken him in were always spying on him outside his door at night. The suppressed, excited breathing and swallowing sounds coming from outside the crack in the door made Ding Yi have no doubt that the elderly couple would break down the door and kill him at any moment. Wanting to escape, Ding Yi discovered that this place was in the twilight of a dynasty, teeming with evil spirits. Falling into despair, Ding Yi suddenly discovered that he could use his life force to enhance everything. Consuming one month's life force, he enhanced a wooden plank into an exquisite crossbow! Consuming two months' life force, he enhanced a pit into an exquisite trap! All in! All in!! Enhance this pile of scrap paper covered in drawings of little people!! Enhancement successful, congratulations on obtaining the martial art "Evergreen Technique"!! ...