I really don't know where to post this but I feel like I'm suffocating

I'm in an impossible situation, my mom who was my main abuser, and otherwise the main character in every given situation, besides being narcissistic and completely unreasonable, now suffers from a plethora of chronic and autoimmune illnesses and I've been taking care of her for the past 6 years. You know how that must feel. We live in the same house, separate households.

I've been going through it, really. I'm a single mom, been on my own the entire pregnancy and my child's life. No support from mommy dearest as you'd expect. I'm burnt out to the bone, I'm tired all the time, I started forgetting things, I'm losing it. My son's a teenager now and I hoped I'd get a chance to have my own life, even if that means only sleeping in on weekends and watching a movie when I please. I never got or expected much.

However, as my mom's health declines she's pushing REAL HARD for me to become her legal caregiver and it feels like the world is closing in on me. I'll never get the chance to have a life of my own. I have a neighbor who leads a similar life and she's in her 50s now, completely given up on everything. She's a slave to everyone and mentally messed up.

I'm not young anymore, even though I see people older than me, in their 40s, enjoying life and doing things they always wanted. I feel like I was born to be a prop until I'm needed, then I turned into a servant. She never asked if I agree and pretends like she's doing me a favor because I'd be paid by the government to be her lap dog.

I feel like I'm dying and I'll be a corpse doing her bidding until the end of time. This can't be all there is to life.