This is the first time I've had a lesson with a teacher who is not Filipino.
This is my first lesson with a teacher who is not from the Philippines.
ーThis is the first time I've had a lesson with a teacher who is not Filipino.
「フィリピン人でない先生のレッスンを受けるのは初めてです。」
have a lesson で「レッスンを受ける」
a teacher who is not Filipino で「フィリピン人でない先生」
ーThis is my first lesson with a teacher who is not from the Philippines.
「フィリピン出身でない先生とのレッスンは初めてです。」
a teacher who is not from the Philippines で「フィリピン出身でない先生」
ご参考まで!