1. The air in my forge feels like hopelessness [k3: is slightly awkward.] heavy with hopelessness .

2. I can still hear the echoes of laughter from days long ago, but now they feel like distant memories seem like distant memories [k3], drowned out by the endless clang of metal on metal.

3. I used to have the sense of meaning a sense of purpose [k3: "a sense of purpose" is more natural and commonly used.] in my life, but now all I see are [k4] my calloused and weary hands and bright hot iron.

4. The Romans have come, and with them, they’ve stolen [k3: "with them" is redundant and makes the sentence wordy.] have stolen [k4: I would use Past Simple here to refer to a moment that is already in the past]  not only our land / stealing not only our land.

6.  My forge was a place where the rhythmic clang of hammer on anvil sang a song of creativity and contribution [k3: disruption of the collocation] craftsmanship.

8. I shared quiet moments by the fire with my beloved wife, [k5: It is a descriptive relative clause, which requires a comma] whose eyes were the brightest grey eyes [k4: "brightest grey eyes" should be followed by a clause for clarity.] brightest grey I had ever seen, dreaming of the joyful future [k4] a joyful future.

10. But that world shattered the day the Romans arrived, their legions shining in the sun and marching into our village like a dark storm cloud [k3:  overly simplistic] as ominous as a dark storm cloud.

11. “We come [k4: tense!] in peace,” their leader proclaimed, but the chill in the air told the opposite [k3:  awkward phrase] betrayed their true intentions.

12. Now, as I stand  in my forge, I feel like a ghost [k4: it is the Subjunctive mood!] were haunting my own body.

13. Days turned into weeks, and I found myself caught in a web of despair. [k2: or use a present tense here!]

14. “You’ve become one of them!”, [k5: Incorrect placement of the comma after the quotation mark.] my wife remarked [k1: underdeveloped plot], her voice filled with sorrow.

15. My existence from vibrant had turned into bleak [k3: word order not typical for English] had turned from vibrant to bleak, and I wondered if I was destined [k2: tense!] to be a mere shadow of my former self.[k2: coherence: why do yo feel like a shadow of your own self?]