@KallolDutta0 something that helps me write during a writer's block period is focusing on one specific thing, whether it be a theme, setting, an object, a person, etc. from what i've gathered in your work it seems like you have a pull towards medieval imagery and raw/deep emotions, i would work with that!
perhaps writing something focused on a "knight's fall
explore the metaphor of a knight in shining armor whose armor begins to rust, symbolizing vulnerability and the weight of emotional burdens. the "battlefield" could represent inner turmoil, and the castle walls could stand for emotional barriers slowly crumbling.
another idea could be an "eternal siege"
using the metaphor of a castle under siege to depict someone struggling with anxiety, depression, or intrusive thoughts. the unrelenting attack from an unseen force could mirror how it feels to fight an unseen battle.
hope this helps!