A great way to avoid working in "fear" is to gain confidence through researching the work you are faced with that you're not sure about.
This forum is an outstanding resource for that confidence, but do whatever you need to in order to achieve knowledge. Someone here has (more than likely) been through whatever new thing you are facing, and we are all happy to help when asked nicely.
No matter how long you have been in this field, and many of us here have quite a few years behind us, you will occasionally be confronted by a challenge - it's part of the fun of this job.
Don't be afraid to ask, and to ask the same questions of several different people. Weigh the answers you get and figure out what you think will best suit your situation.
First off, always think!
Good luck, and may this trade be kind to you!
