Mini Watermelon Peperomia Plant (Needs Rescuing)

In a small 3 inch plastic pot. No matter what I do, this plant seems to decline, hoping someone else will adopt it before it becomes compost 🥺 This peperomia (peperomia versechaffeltti) is related to the regular watermelon peperomia (peperomia argyreia) but its leaves are smaller and more narrow. If it’s in a condition where it thrives, it will have oval green leaves with striking silver stripes that make it ressemble a watermelon.