shepherd's voice

Many of my friends have said they feel called to do something or go somewhere or marry some person et cetera. And some have even told me that I am called to go some specific place for a specific purpose that they named. I haven't ever felt that extra calling. I'm not sure if it is supposed to be a feeling or a supernatural audible voice or what. I try not to be bitter about it. Maybe it is possible that God has given some people an extra specific calling and some of us are just supposed to live. I think I feel left out. But I've also been thinking that if I'm not hearing the Shepherd's voice, is it because I'm not one of His sheep? I know that I am, but I'll explore this thought -

The sheep know Him and hear His voice and follow Him (John 10). I've seen evidence of the work of the Holy Spirit in my life. Am I to conclude that I managed these changes on my own? Doesn't that sound a bit egotistical that I in my sin managed to live a life of a regenerate soul? Simply impossible.

So why can't I discern His voice?

Furthermore, if I am trusting God, if I am abiding in Him and His word is abiding in me, if I am following Him, then why can I not get over feelings that I no longer wish to posses? I feel so stupid. Things will be better in May.