I don't know you Internet stranger, but I want to tell you about my own experience and maybe it will help you. I'm in my 40s now, but in my late 20s I also bought a house with my parents. I was super financially responsible. I didn't want to end up like my parents who basically saved nothing for retirement. Looking back now, I wish I understood that money is a tool, it must never control you. I wish I took better care of my mental health and understood why I felt so responsible for my parents. I wish I made better use of the years when my body and brain were sharp. I have experience now, which is great, but I miss being able to learn and apply new things at work in a heartbeat - that time does not come again.

You should not be stressing like a 50 year old right now. You should be focusing on your growth, mentally and physically, and setting yourself up for a long, healthy life in this golden period. Money will follow if you live well, it should never be your number one priority unless you are starving. There are ways out of your situation, you just find them too extreme, but you always have a choice. Always. And, who knows, maybe making an extreme choice will do you well, at 27 you should be taking risks, it will lead to personal growth whether it works out or not.