The key words in a sentence often include the subject, the predicate, the direct object, the indirect object, the subject complement. What all these elements have in common is that they are strictly required for any sentence to be considered grammatically correct. Also, when reading them you are able to understand the meaning of the sentence.
Adjectives, adverbs and prepositions frequently add information which is not necessary for a sentence to be complete. They either modify nouns or verbs. If you decided to remove them from the sentence, it would still make sense and its meaning would not be altered.
The only way to deal with fear is to face it. Avoiding our fears only prevents us from moving forward—it makes us anxious. But be gentle with yourself and do only what feels safe to you! If you find yourself getting more panicky, take a break and find something pleasant or comforting to notice or do.