Does my ERD look well designed?
PRIMARY KEY (`STUDENT_ID`, `ANNUAL_FEES_ANNUAL_FEE_ID`, `PARENTS_PARENTS_ID`, `PARENTS_ACCOUNTS_ACCOUNT_ID`),


It seems like Students would have student_id as its PRIMARY KEY.

DECIMAL(4,2) -- do you want to limit things to $99.99?

This is what I mean about many-to-many relation table:

CREATE TABLE XtoY (
    # No surrogate id for this table
    x_id MEDIUMINT UNSIGNED NOT NULL,   -- For JOINing to one table
    y_id MEDIUMINT UNSIGNED NOT NULL,   -- For JOINing to the other table
    # Include other fields specific to the 'relation'
    PRIMARY KEY(x_id, y_id),            -- When starting with X
    INDEX      (y_id, x_id)             -- When starting with Y
) ENGINE=InnoDB;


What is a "Performance_Student"?

Parents table:

parent_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT,
family_id MEDIUMINT UNSIGNED NOT NULL,
type ENUM('mother', 'father', 'guardian', 'grandparent', 'other'),
`LAST_NAME` VARCHAR(35) NULL,
`FIRST_NAME` VARCHAR(35) NULL,
`EMAIL` VARCHAR(50) NULL
PRIMARY KEY(parent_id)


The Phones table would have parent_id and be many_to_1.