You mentioned that friends come and go but then focused on the going. Friends also come. It is perfectly possible that you will always have friends around.

Right now, though, I am concerned about the sui tendencies. You can find ways to cope in the moment at the distress tolerance category at dbtselfhelp.org. Or google dbt distress tolerance. There is also the crisis chat service we discussed. Right now I ask you to focus on staying safe tonight.