Try this method if the other methods don’t work for you.
Write down a list of questions that you want to ask your interviewee. Ask them to record themselves answering these questions. You can send them this link, which will give them tips on how to record themselves:
www.talkingaboutvoices.org/how-to-record-your-own-voice
Ask your interviewee to send you their recording using whatever file transfer method suits you both: for example, Dropbox, WeTransfer or Google Drive.
You can then transfer their recording to a computer (if you’re doing the editing option) or to your teacher (if you’re just doing the recording option). If you’re transferring the recording to your teacher, make sure to name it correctly (you will find instructions on naming and your files later).