Rebooking and then cancelling

I got so upset and disconnected with agent too quickly…

My original flight was supposed to be tomorrow March 7th and they offered to rebook for 15th.

I will look for alternative very expensive options to get back home.

If I get a refund I can’t rebook. What if I rebook, find hopefully a good quicker alternative and then cancel?

Or if I rebook I cannot cancel later?