jelly, i am so sorry to hear about your mom's turn. she sounds like a fighter and sometimes that makes all the difference with these long term treatments.
my mom has recently been diagnosed with lung cancer, has since had a surgery to remove effectively half her lung and thwn went and declined further treatment.
the fact that your mom is willing to keep fighting is awesome. the fact that you are willing to help her is more than admirable. it is sad that sometimes when we chose to help others it does have a cost.
I was super excited to hear about your holiday plans and i am disappointed for you that you won't be able to travel. you hit the nail...there WILL be more chances to travel to be on this side of the world, but may not be more chances to spend time with your mum. I will be sending all the prayers and positive energy around the globe as I can spare.
as for the empty cup...please dont forget to spend time addressing that for yourself. caretaking is an enormously draining endeavor...you can't allow it to wear you completely out, right? please find an opportunity to spend some time treating yourself, caring for you!!! dont forget to make that effort to spend a few moments every day to focus on Jelly, to treat her like she deserves!
