Does this get better?? :-(

I have been on the floor now on my own for about 3 months (I'm a new grad RN on a neuro and spine unit). So last night was one of the worst shifts I've ever had and again (this happens way more than I'd like it to and all too often I dread going to work) I'm left to wonder if I should apply for a different job or change my career. I hardly have time to take breaks it seems, like ALL THE TIME and I'm someone who has a hard time going a long time without eating (I weigh 100 lbs and can't afford to loose anymore weight and have a super fast metabolism). I'm lucky if I get more than 1 break and that's on 12 hour shifts. I can never ever get out on time (up to an hour after shift is done) and it's getting so frustrating especially since my child is left to sit at daycare and I'm wondering when daycare is going to get fed up with me showing up late to pick him up all the time. I like what I do (I absolutely don't like that there's sooooo much I don't know as a new grad RN) and I feel like my patients are kept safe while I'm working it just takes me longer to do things because I have sooooooo much learning to do and I struggle a little in the confidence department. If I'm not for sure on something, I have to ask about it. Will this get any better? Or do I need to look for a different job or possibly a different career?? I dunno, maybe I just wasn't meant to be a nurse. :-(