Romans 8:16 The Spirit himself testifies with our spirit that we are God’s children.
When Jesus said He would leave behind a witness or a guide for us, He meant the Holy Spirit; a spirit who talks to us through our spirits.
So if you don’t hear an audible voice speaking to you, telling you which way to go, don’t worry because most of us don’t get to hear audible voices!
We cannot guide ourselves – even our spirits cannot guide us by themselves. We need God’s help and it is given to us through the Holy Spirit communing with our spirits.