Meg is a perfectionist. She is so preoccupied with perfection she almost never gets things done on time. She procrastinates and focuses so closely on trivial details that she often fails to see how the details fit into the bigger picture. Socially, she rarely goes out because she is too busy working. She often won't make choices because she fears making the wrong choice. Meg's life is dominated by rigid expectations and goals. Meg is suffering from personality disorder.

Obsessive-compulsive

Explanation:

Obsessions

This is simply known as a repetitive and intruding thoughts, ideas, impulses, or images etc. The common obsessions found in children includes contamination, fears of harm to self or others, different sort of concerns etc.  In adolescence, common obsessions  are commonly known as sexual, somatic, and religious preoccupations.

Compulsions

intruding and intentional behaviors that are carried out due to an obsession.

This is simply refered to as a form of recurrent, invasive and interrupting thoughts that leads to anxiety that is followed by other ritualized behavior  so as to suppress the anxiety.  Children with OCD  are time-consuming that is they take more than 1 hour a day when preparing them and they have an often disturbing obsessions and compulsions.