Not all loneliness is social. In what areas of life are you lonely? (Socially, financially, spiritually, physically, professionally?)
Loneliness is not just being alone. You can be alone and not be lonely, or you can be very lonely in the middle of a large crowd of people.
You probably have many friends and family members who are just not with you right now. It is often encouraging just to remember that you still have many friends who are currently somewhere else.
Make a list of your “life-long friends” regardless of where they are at this moment. You may also want to give one of your friends a call or drop them a note.