Okay, I'm going to try and make this long story short.

I am so confused right now. I've been taking care of my elderly parents for a few years now with little help from my much older siblings. There is one sibling in particular who has just finished nursing school that has made it clear that she would like to be in complete control of my parents all of a sudden.

This sibling has demonstrated on several occasions that she is not fully capable of this. Even though she is now a nurse, she continually makes mistakes in the care of both parents. Last winter when my Dad almost died of pnuemonia, she seemed very confident about what she was doing in regard to his medications etc and would refuse to listen to me. I had to literally scream at her sometimes to get her to listen and see what she was doing wrong. I was at my wits end and extremely tired. My Dad would also call me at work in terrible pain from his catheter because she was unreachable. Eventually, I was terminated from my postition.

Both parents were in the hospital in May and I decided not to work this past summer because I knew if they weren't taken care of properly, something else would go wrong and I couldn't handle either one of them going into the hospital again. My worst nightmare is dealing with death or funerals. I can do everything except that and I'm scared to death to be around when this happens.

Okay, here's what I'm confused about: The past couple of weeks have been emotionally draining because it seems whenever this sibling is around, my parents become VERY angry towards me to the point of asking me to leave the house. Yesterday was the worst because this older sibling already uses one of my cars but was loaning it out to her son. She was called for a job interview while I was out with my Dad and somehow "found" some keys to my minivan and took it to get to this interview.

The whole thing seemed so weird to me and needless to say, I was livid as was my Dad at the time. He assured me that he would talk to her but I made a prediction that as soon as she walked in the door, she would say something that would make him see things differently.

Okay, so I went to take my Mom's cat to the vet in their car and when I got back, my Dad was standing outside with her smiling and talking very calmly. He said she couldn't help it and that she had to go to this interview right away. Everything else was forgotten and I wasn't allowed to say anything.

What on earth is she saying to them to make them behave this way towards me? Why are they so easily forgetting how much I've given up to help them full time? I am twenty plus years younger than the rest of their children and lately, I've become increasingly frustrated with how I'm being treated and just don't know what to do.

I've been told by friends to just leave and build a new life for myself but I'm still scared for my parents. The thought keeps running through my mind as well that if I leave, I will basically have no family. I am a single female with two large dogs and when my parents are gone, that will be it for me. The thing I don't get is that my parents and I were getting along really well before this older sibling stepped in again and started "helping" more frequently. I just don't understand where this big change in attitude is coming from and I can't do anything about it. They absolutely refuse to see my side of things. My Dad showed no support towards me at all after she took my minivan. I still haven't figured out where she got those keys from. I have every single one of my keys to that car.

Am I missing something here? I mean, my parents are still able to think very well for themselves. Why would they allow her to control them and actually be happy about it? She manages to be extremely nice to them and make them think she's really helped them when she's barely done anything. I guess I don't have that ability within me because I am thoroughly confused about how she's managing to do this!!!

I would like anyones take on how I should be handling all of this. Should I just get into the mindset of I'm losing my parents and things will never be the same. She's definitely not going anywhere and right now, they would choose her care over mine even though I know I do a better job.

I'm so hurt and scared. Is there anything I can do to turn this situation around?