Also I should note that if you recently had big changes in your life, this can make you feel that things around you are worse than they really are.
I cut out some IRL friends that I've known for 10 years, and I similarly felt "lost" and that no one around here cared about me. Those feelings will wane over time.
Again I'm not an expert or anything, but before you start blaming the internals, try looking at the external factors first.