So it has been a long time. 2 years have passed in a blink of an eye. People who were once there for you, where have they gone?

Why do people get more and more depressed as they grow older? Or is this just me? I have all these sad thoughts in me that I could never share. Where will my soul mate be possibly at? I yearn for someone to talk to, someone whom I can be forever with.
Is that someone really so hard to find?