This dude knows what he's talking about. I used to go to pieces when I was alone for a week or so. Meditation helps. Finding internal peace helps. You need to find out that you are okay with being you. Find your own meaning and place in this universe without that being external to you (not within another person).

And do the physical things. Take a shower and brush your teeth. Go for a walk in the woods. Go outside at night and look at the stars away from city lights. Go for a drive to nowhere, a place you've never been before. Take a long hike. Work with your hands in the garage. Plant something in the ground. Do a hobby. Volunteer.

People are stressed out right now and need to have a release. Everyone is going through this. The sooner you find your own internal peace, the better off you will be.