Simple answers: yes, yes, yes and it's a learning curve. :)
Learning to hear God's voice can be really complicated, and also simple. You can hear Him in His creation, the beauty around you. Sometimes He speaks through the mouths of your friends, speaking wisdom to you. Sometimes you may read something and it brings life to your weary and tired soul. Sometimes you open the Bible and find His words speaking life to you. Everyday there are new opportunities to hear from Him. I hear Him more in some seasons of my life than others, but when He does speak, I know it's Him (just like Jesus spoke in John 10--His sheep will hear His voice and know Him). I'm sure you've heard His voice before, (you believe in Him--that means something at least!) and if you have asked Him to help you make decisions, I'm sure He helped! The way I most see Him speaking is by looking back in my life and seeing what good has come from decisions I made after asking Him for help. It's easier to see Him working and speaking AFTER you make the decision :)
He is definitely concerned about our lives, Ephesians 2:10 says He prepared good works beforehand that we may walk in them. He is concerned with how we treat one another and how we love, if we love.