@Podgedodge there is a blood test called Travera i believe that can tell you if you still have circulating tumor cells, although its very new and has challenges as there is no protocol for people who do come up with measurable results as, effectively, they are waiting to metastasize.
@Chocolateismyfavourite I am stage IV and always have been since diagnosis 3.5 years ago (breast, bone mets). I don't remember which yours was, though, was it breast or a different gynae cancer?
I'm not going to sugar coat this, it sucks and coming to terms with the diagnosis will take time, took me a good six months and I still swing to rage from time to time. I've had good times and bad patches, but I'm still here, learned a lot, live somewhat normally, and deal with shit as it comes. Don't borrow trouble, don't worry about the future, and enjoy every day, even the smallest things. Cry when you need to, feel sorry for yourself for a bit when needed then pick yourself up again and put the next foot forward then the next. Get a therapist (i can recommend one), you WILL be angry because none of this is fair.