Whew, boy do I understanding being afraid of everything like that. I've finally gotten to where there are moments when I am not as afraid but they are still few and far in between. It's wearing being afraid of everything. And discouraging.
Kiya has some really good advice (as do others here). I have to do a lot of self talk sometimes. Even though there are parts of me that take on and do when I can't, it doesn't seem to alleviate the fear when I'm present.
Hang in there Kalamity. I wish I had some really good tricks to get through, but I just wanted you to know I care and understand.