Dealing with it all

Hello, I just joined this forum as I was looking at sites to get financial assistance for my family. I'm 27 years old, and a daughter to a terminally-ill last stage esophageal cancer father. It has been becoming more of a struggle as we are in our last leg of my father's disease. He wasn't diagnosed till last October, but it spread much too far to give him surgeries, so he gave up on any treatment this past June. I've been caregiver to my father this whole time, and just before I had been caring for my 84 year old grandmother who has troubles on her own. So for nearly 4 years I have put my life on hold to care for family members, and it has felt taxing to say the least, since I feel as though my 20s are nearly gone and with no other form of job, it has been more and more frustrating with that reality setting in. I'm really not sure how much longer I'll have my father around, and though our relationship has had its difficulties there is just no replacement for the only person I'll ever truly call "Dad". With my father worsening and time feeling short, my mother is also staying home now. However, I'm beginning to wonder how we go from there. With finances now even tighter than they have been, how do you begin to start getting your life together? The past 4 years of my life have been partly dedicated to others, but how do I transition myself to begin taking steps toward life after all of this? My mother is basically giving me the go ahead to look for work and finish school, but I honestly am not mentally prepared to handle that right now and I think completely pushing myself into something might either be great or just too much to take. Thank you for taking the time to read, and any advice or comment would be greatly appreciated.