Will my mother with Alzheimer's be alright if I hire a caregiver and put her in daycare?

my mother just diagnosed with dementia may 2011. i believed she has this deseased for years. my step father just passed away may 31, 2011. he never did anything to help my mom. maybe because he was very sick himself too. my mom is now living with me. it is so difficult to accept that i will be her caregiver till she goes to heaven. more and more i am to the point where i have to quit my full time job soon. i do not know if i could afford it especially when i need a medical insurance for myself. but yet my mom needs me. i am so confused because i do not know what i am going to do. i do not know whether she is mild or moderate stages. i could hire a caregiver, put her to daycare, will she be okay there? she talks and talks none stop. who would put up with that. she also cries alot since my father passed away. when you tell her to go to a daycare, she fights me and she can be very mean. this is so stressful on me. i have no more life anymore. she brings home a good amount $ a month. my father left her a good amount in her savings. she still has her big house. i have a POA of my mother now. should i sell her house since my step sibling are figthing me for their share. my step dad gave everything to my mother. i feel as if they are watching me. it is overwhelming let alone taking care of your mother. help! can someone help me?