I would like to attend a Catholic High School ?

my school is also the same Notre Dame High School but its in Puerto Rico its called in spanish Colegio Catolico Notre Dame Superior or simply Notre Dame Superior(theres an elementary nearby). And i dodnt even know catholic birth certificates exsited. in my school you would be able to get in. only thing religious is some prayer in the morning and afternoon which nobody listens. church once a month(maybe less) and religion class