Usually when we dream of deceased family members, it's an attempt to deal with our memories, emotions, guilt, or anger in connection with the people who died, or feelings about death. When someone close to us dies, we go from relating to them as an external reality, to meeting them as alive in our memories, and inner life.

Clothes represent the attitudes we use to meet other people, or special situatios....work, danger,...self-protection which might arise from feelings of reserve, shyness, anxiety, or aggressiveness used in fending off sexual, or other advances.
Clothes can symbolize self-respect and how we see ourselves in society....the difference between what we want, and what we feel others want from us.

Wrinkled or untidy clothing suggests you feel you're in an emotionally untidy, confused, or jumbled up, state of mind.
Your siblings' clothes represent the social attitudes you adopted from them....that you see yourself like them in many ways.
Not being able to find anything to wear, suggests that you feel incapable of making good decisions at this moment in your life.

Phone calls suggest a desire or attempt to communicate, or make contact with an aspect of yourself, or someone else.
Not being able to answer the phone calls suggest you are avoiding making contact with someone, or that someone else is trying to 'get through to you'.
Trying to find a way to answer the calls suggests that you would like to be able to take charge of your life and the circumstances causing the anxiety.

Moving your desk, and the lost papers suggest the confusuion, anxiety, and emotional upheaval, you are feeling currently in your waking life.

Continuing to talk to your sisters, even though you know they are deceased, suggests a need for comfort, guidance, and family support.

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I know you've been through a lot recently....I hope this gives you a bit more insight.
Hugs, J