Lettre de motivation en anglais

Sujet du devoir

Dear Sir or Madam.

I'm writing this letter to apply for the position of babysitter.

I'm 14 years old and I'm a student at *** College.

I speak French but I study English at school with my teacher, Mrs.*****

I am free to work every night after school and on weekends.

I am caring and very patient, I have three little brothers (so I can take care of children) and a big sister.

I go every night to look for my little brothers at school.

I love taking care of children because I find them adorable.

I think I would be competent for the job.

Thank you for your time and attention.

Sincerely.

Où j'en suis dans mon devoir

Bonsoir je dois rendre une lettre de motivation pour un entretien d'embauche pour un poste de baby sitter je voudrais savoir si j'ai fait des fautes ou mal formuler des phrases merci d'avance