is it EVEN possible?

[myNAMEisME]

i am to file my PR application under caregiver program soon

looking at the timeline for first stage approval, its gonna be a waiting game so will the following scenarios be even possible?

1. after filing of application, can we go back to our home country to study for a year or two. it is really expensive here if you are to study as international student.

2. if 1 is not possible, then apply for student permit and study while waiting.

3. how long can you go back to your home country before coming back? can we just go back when your processing is almost over?

will appreciate any response.