Suitable word for a hardworking and resilient person [duplicate]

Solution 1:

Stakhanovite :

An exceptionally hard-working or zealous person.

• as modifier ‘she was a Stakhanovite worker in the field of female suffering’.

(ODO)

Solution 2:

• I am industrious.

From Etymonline:

"characterized by energy, effort, and attention; marked by industry," from Middle French industrieux (c. 1500) and directly from Late Latin industriosus, from Latin industria "diligence, activity" (see industry). Of persons, "given to industry, working diligently," 1590s. It retains the etymological sense of the Latin word while industrial serves in the modern senses.