I’ve had this dieffenbachia for about 11 months and it has been a struggle. It’s been consistently yellowing and dropping leaves but also growing new leaves. I repotted in April to try and bring it back to health but it seems worse. I am not sure if it is worth saving anymore.. I mist with distilled water and it sits in very bright indirect light from staircase windows. I water when soil is dry and let the water drain out the drainage hole. It is potted in all purpose indoor potting mix mixed with extra perlite. Any help would be appreciated! Wondering if I could propagate what’s left to give it another chance.