Using Similes, Metaphors, and Hyperboles

We have been learning about what similes, hyperboles, and metaphors are and how to use them.
I would like to include one or two of them in my memoir.

For example; a sentence in my original piece reads:
"There is no turning back now, I thought to myself as I waited in the blistering hot, never-ending line."

I could use a metaphor in that sentence:
There us no turning back now, I thought to myself as I waited in the line that was seemingly hotter than an oven in August. The line never seemed to end.


I like the sound of that better than the original version of the sentence. I think I will use it in the final draft of my memoir.