Reddit reviews The Emotion Thesaurus: A Writer's Guide to Character Expression (Second Edition) (Writers Helping Writers Series Book 1)

People instinctively or deliberately develop coping mechanisms for unexpected and sudden stress situations. For instance, a first response might be to take a step back and reassess a situation, to allow time to recover so you don't display distress in a social situation.

Loss of control isn't immediate, it's a gradual process that occurs as successive coping mechanisms are tried and abandoned. Ultimately, if no coping mechanism works, the person may enter a state of shock. Of course, this only increases the danger, since a person in shock is less able to respond, but that's just the way it goes sometimes.

>The character has pretty much been dropped in the middle of nowhere, and her love, who had been with her, is not anywhere in sight.

It's going to depend on the personality of your character, for sure. I think most people would start with anger and disbelief, but some people would go straight to fear. Or say she's a very capable and self confident person; initially, she might feel entirely capable of handling whatever problems come at her.

I recommend you have a look at The Emotion Thesaurus by Puglisi & Ackerman. This and also their positive and negative trait thesauri are worth the price.