Is job sharing an option? i.e. doing the same job but part time with someone else. I guess continuity could be a problem there...

Would you be interested in looking after other children in your home at the same time as your child perhaps?

Is there any chance of working as a naturopathy assistant while studying? Like an apprenticeship...

Do you have other interests outside of work that you could turn into a job? Like music (teaching), or crafts (to sell as your SIL suggests)?

Sorry...not a lot of help here I hope you can find something to suit you when the time comes.