谢谢姐姐！

1. Some most common fears – some of the most common fears

Right.

2. my idea about a job change is like a blurred picture that suddenly finds its focus -> my idea about a job change is like a blurred picture that is suddenly brought into sharp focus…

I like this one!

3. that most intrigue me – that intrigue me most

I think either one is OK in this case. I had your version first, and moved "most" while editting.

4. it hit me – it hits me

This one I wanted to use the past tense.

5. let’s not fear making speech – let’s not fear to make speech

fear后面好像是要加ing的。

6. Now I think fear itself is not to be fear, but to be endeared - 是不是太绝对了?  Some fears are negative. How about "some fears are not to be feared, "?

Great suggestion! I will change it now.