Staying afloat ~ (Mermaid academy)

Gabriella Rodriguez is your typical 17 year old girl. She goes to the mall, she has a best friend and she goes to highschool, one for mermaids, that is. When a horrible accident happens, leaving Gabby parentless, and her the sudden queen of her kingdom, will Gabby stay afloat, or will she drown, taking all of her problems with her?