My grandfather is dying, my girlfriend broke up with me, and my parents are divorcing. My best friend at school left. My friends are all dating people now and rarely see me.
Sorry for your losses, that’s a lot of human contact getting lost at once. Keep an eye on people who will stick around, even the ones that were never among your closest ones, you might find someone you can trust more than expected among them.
And Heart Support will always have a place for you.