'her mom and dad fond her new school, and making new friends helped her to recover and become interested in wider world again.'
The type of sentence used in the given line is a compound sentence.
The word "shyness" is categorized as an abstract noun. Abstract nouns are used to describe concepts, qualities, or states of being that cannot be perceived through the five senses. In this case, "shyness" refers to the state of being shy or feeling timid. To determine the type of noun, you can analyze its characteristics and usage. In this case, "shyness" is an intangible and uncountable concept, which aligns with the definition of an abstract noun.
