Right now, Barefoot wants to reduce the utter pain of weekends alone and dealing with the recent loss of some relationships. Loss of relationships is a huge grief factor, even if they were not the best. This, alone, will affect sleep.
I would suggest starting a trauma diary on this site, reading a book appropriate to her situation right now, and crying and angering out the loss. Verbalizing it to the T. is needed.
And then getting sleep with medication until the worst of the grief is over, maybe a year, would stabilize the body.
Finally, in about 1-6 months (depending on the sleep factor and progress) I suggest locating and setting goals, such as fitness or exercise daily, reading bucket list, volunteer work, something creative, or some other career or financial goal, gives a person a sense of accomplishment despite the lost relationships, PTSD, or whatever.
Meaningful work is at the top of self-actualization, but I believe that self-transcendence is called for, which is to make one's life matter and to live it in such a way as to better either a cause or another person/people, the environment, or whatever cause resonates.
For many people, the emptiness is a result of a loss of feeling that one's life is more than it's sum total of suffering.
Suffering is released when acceptance that life, at least for "me," has to include this pain, but I'm still here and there is work I can do with what I have left.
Albatross said that she looks at life from the end point perspective, and there is value in that, but that is imaginal, you are not at the end point, nor can one guess what it will feel like in decades of new life experience, if we get that far.
I look at life from a perspective of the world, all of us here as one family or tribe. How are we treating each other? What responsibilities do we have to one another? Also, I believe, the main reason we are here is to figure out, despite all that life throws at us, and despite our limited senses and perceptions, who we truly are.
That's what barefoot is doing. It is a painful process at some points, and others are joyous, like giving birth to yourself.
I hope you feel blessed today. Peace? That's a tall order for anyone living in this time on the planet. It won't last, but to try to feel it for a few minutes each day, that might work.
Also, a few mintutes a day, How about compassion for yourself, and others?
Once when my supporter saw I was down, he put on "Puppy Party" on the Roku/TV, and I began laughing at the silly puppies! It was so abrupt a "Mood 180." It's hard for me to feel sad looking at beautiful and cute puppies.
Make a list of things that make you laugh/smile/feel a "natural high" and keep them handy for Friday night. Start the weekend off right. Plan for a cry time and journal time on Saturday, after you have had a good night's sleep. Then Sunday, do something you have on your goal list, such as walk 3 miles or put 3 hours into a goal. Maybe join a walking meetup or hiking group, or volunteer.
When you're this low, you have to write it down on paper or on the calendar and just go through the motions, fake it till you make it, and order and structure carries you through. Don't let yourself fall down to the inner chaos.