You know Queen Elizabeth I took a bath once a month. Today, we are obsessed with bathing--look at the plethora of perfumes, razors, soaps, and shampoos out there.

I'm really saying--don't judge yourself so harshly.
I would imagine much of this is because you are sleep-debited.
All the things you listed that you have not done, merely become a 'to-do' list. Do one a day. Maybe get a life coach to become 'accountable.'

You already know that eating junk food isn't helping...

As for the friend who didn't respond to you being down--sometimes people don't know how to respond. Or it scares them because it reminds them of how they have felt at times; that friends lack of response was all about that person, and not you.

Please come back and let us know how you are--I am sending you healing light.