When we don't understand something, our gut reaction is fear.
While this is reasonable, it does not make it right or helpful.
If you fear something, you will not take the time to learn more about it. Rather than fearing the unknown, ask questions. Questions lead to education and understanding.
Education is a better response than fear.
When you fear something, it can stem from a lack of understanding.
The next time uncertainty enters the picture, do not run in fear. Ask questions and educate yourself. Seek to understand. Once you are educated, then you can make a well thought out decision.
A decision is needed. You have to make a choice. Better to make a choice from a place of knowledge than one of fear.