It looks totally worth saving, and the first step would be to remove all the soil that is covering the base of the leaves. No part of any leaf should be below soil level. Otherwise when that soil gets wet, it will tend to promote rot in the base of the leaf, which can creep into the stem and cause the plant to melt down.
Can you provide natural light? A spot right in front of a southerly facing window would be ideal. Try not to water too often. I would recommend watering well (until water comes out the holes in the bottom) and then waiting until the soil is dry or nearly dry at depth (not just at the surface, which tends to dry out much sooner). Strong light and warm temps will help with the watering because they will tend to promote evaporation.