Possible Duplicate:
I'm graduating with a Computer Science degree but I don't feel like I know how to program
I have been a .net dev for about 3 years at a non-software company, and I want to try and implement unit testing into our software projects.
I have been reading blogs about the basics of unit testing and am currently reading The Art of Unit Testing. I feel I have a fairly good understanding of how unit tests can be set up and implemented, but I am wary of implementing it because if things were set up wrong, no one would notice / my team would be writing bad tests thinking they were good tests.
I feel that my whole underlying issue is with fear of failure, being in implementing unit testing or in persuading the team to start using / writing unit tests.
How do/did you increase your confidence in your own knowledge about coding?

