Do I really have to mow the grass? I am afraid to do it.
Is there anything in particular that is frightening about cutting the grass?
The loud noise freaks me out. I am anxious about the big lawn mower.
That's absolutely understandable, especially if you've never used a lawn mower before. Facing your fears can make a situation like this better. To help, use headphones and your favorite playlist while mowing!
I'm tired of everyone using the lawn mower. I don't want to be associated with the thing.
If you promised to mow the lawn, you should honor that commitment. But, if other people are using the mower as well, you may need to create a schedule that works for all of you.