Copy content from your school account to another account

The easiest way is to learn from Google themselves. Check out this link to learn about Google Takeout

https://support.google.com/accounts/answer/6386856?mkt_tok=eyJpIjoiWWprMFpXSmlaRGRoWldVNSIsInQiOiJRcTBiTnl5ZlJLVEJCZ3N1bmZCSVlvYjJpZGttSE4zeVprU0ttZHRjanVDcmQ4QVpHZjJJVGJFK1UyS1wvOE5DakFFSk1BemZqQTQ3aFJsUUFydlwvbTFHdUdWdUVuNkpnbUdMNUVJZGVQT1NQNUtnbHFBYmFzdUdBMElQK2U5S1FcLyJ9