I HAVE NOOOOO HELP !!!!

I am NOW an only child as my only sibling and my dad took their own lives, not to mention, I have no other family or friends to help me. My mom is approximately 50% advanced into the Alzheimer's/Dementia stages as well as other medical issues that require me to care for her 24/7. I'm ready to jump off a bridge.

I now know what it is like to be a prisoner. I have been doing this for one year and 8 days. I'd venture to say I have been out of this house a total of 50 hours in this length of time, and that is to go grocery shopping, picking up medications from the pharmacy, going to local drug store to get my mom little things she SUDDENLY needs. I'm TIRED, I'm FRUSTRATED, I'm ANGRY.

How do you people do this year after year with absolutely NO HELP? Yes, there are HHA's that will come in and sit with her but only for a maximum of four hours. Can't find ANY PLACE that will accommodate a four-hour get-away. Would you believe I have only put less than 450 miles on my car in 11 months? I NEVER thought my life would come to a complete end when I turned 60.

Any words of encouragement will be greatly appreciated as I AM NOT a happy camper.
Thank you for giving me the opportunity to vent. Better this than throwing my cell phone 3 times (and, of course, smashing them in a zillion pieces causing me to purchase new ones).
Sincerely,
GeorgeyGirl