Surely you can find some spare time to read. Also, begin associating yourself with people who are in their own business already. Attend a local business- related seminar in your community. Start watching television shows that are related to business. FEAR is always your enemy.
FEAR is the root of failure, depression and lifelong problems.
FEAR also will cause you to lose out on many other things in life. It will eventually wear you down and you will begin making mistakes on the job. You will also get depressed and build up resentments that may have never been there in the first place. Facing FEAR head on is the best way to combat it. The boss will more than likely respect you for your candidness and ability to face FEAR head-on.