You can be surrounded by people and still have nobody you can call when life gets ugly. A long contact list means nothing if there’s no one you can count on when things fall apart.
You learn a lot about people when you stop being useful to them. The moment you stop solving their problems, some of them won’t even remember you were there.
All this shit you're going through is gonna pay off one day. Keep putting in the work, keep believing, and don't quit before you get to see what it was all for.