Depressed about my job-long

I graduated in May with my RN. The only job I could find is in a nursing home. The area I live in is rural, so there weren't many jobs to even apply to. I can't relocate. My husband is a professor and has tenure now. I have been at my job since August 10th. It has been very difficult. I work on a hall which is mostly a rehab hall. Residents are coming and going all the time. I have about 27 residents to myself. I have to pass meds at 4 and 8 pm, do treatments, assessments, charting, admits, discharges, deal with the family, deal with any crisis that comes up. I never get out on time. I'm always staying late to get my charting done. As soon as I get faster, get used to the new residents, they go home, and new ones come. I am so overwhelmed and frustrated! Half the time I feel stupid. Many of the residents are demanding, need pain meds constantly. The families are worse.They are always complaining about something. I can't always get to someone right away, because I have 26 other residents needing something too. I do have many residents I love, and are sad to see them go when they are discharged. They all seem to like me, and say I'm caring and nice, which I am.The residents are what make me like my job. I feel because I'm too nice, and lack confidence, the other nurses step all over me. There is one nurse(the charge nurse) who belittles me all the time. She makes me feel like a complete moron, in front of families too. Tonight she was mad at me because I bought my own pulse ox to bring to work. They only have one for 5 hallways. It's too hard to track it down. I spent my own money for it, and she says oh you can't have that, you have to use ours! I had a res that didn't look well tonight. She blew me off. I didn't feel good about how she was doing. It was a gut feeling. She felt the res was okay, and we did all we could for her. I always feel because we are short staffed that I am risking my res safety, and my liscense. I worked so hard to get my RN. I would hate to lose it! And I CARE about these people. Half the time I can't sleep because I worry about them all the time. I don't bring up the charge nurses rudeness. I just let it drop. I'm not a confrontational person. I feel so depressed and like crying when I'm at work, and get anxious when I have to go in. It's hard being the new grad! Most of the nurses there are very experienced. There are a few other new grads. I hate giving report to the old nurses, they look at me like I'm stupid. I can honestly say I am trying as hard as I can to do the very best for these people. Why do I not feel good about myself? I stay late to finish charting every day. I have so many events, and assessments to chart. There are a lot of medicare residents. Many people have had a joint replacement. I have one woman that was in a car accident and had fx's to her ribs, legs, and sternum. I have to do neuro checks on her every hour. I have a woman with colon ca that has a colostomy, and was draining lots of blood for several days. I had a man with a feeding tube once. I have some people on IV antibiotics. Some days it feels more like a med surg floor or an ER than a nursing home! They need another nurse on this hall to help! I feel like I'm drowning. I am organized. I have my residents names on a paper, I take notes. I write who I have to chart on. I would appreciate any advice on how to get faster, feel more confident. I want to love my job. Is that too much to ask? These people deserve the best, and I feel like even though I am trying MY best, they are not getting the best. I am only one person. Thanks for listening