((( Hugs )))
Been there, done that. I worked on a similar floor years ago, only I had 8 pts at a time (meaning, 8 assigned beds; sometimes, I'd have to discharge 4 and get 4 admits that afternoon. Those days, I'd stay not only until after 2100 - which was normal! - but left after 2300
) Never mind the mandatory 4th (12 hours) OT shift every other week... It was HELL. And BTW, it wasn't any different when I worked night shift, so they may be correct there (however, if a lot of admits/discharges are the problem, there are fewer at night. So it might help?)
I was a new grad, but the experienced nurses I respected (who took good care of their pts, well as best they could with such an overwhelming load) always stayed until 2100 too. So it wasn't us - it was the excessive workload. Management never said a word about it, they knew they were overworking us, but couldn't find enough help. Wonder why?!
So, it's not you, you're doing the best you can with the limited time you have (time management - don't make me laugh. On a floor such as this, there is not extra time to be had when you could possibly wonder: hmm... should I take my break
now or later? Sarcastic here, I never got a break and I bet neither do you). But one thing I always did - and I urge you to - take 30 min lunch, away from the place. They have to let you do that, with another nurse covering your pts. Otherwise, you will ruin your health (having HTN already)!!!
You don't say how long you've been at this job. In many hospitals, you can transfer to another unit after 6 months. I would definitely make plans now to move on (even if you have to wait until you have closer to a year so another manager will hire you), because it won't get any better there. You will get somewhat faster with time, of course, not having to look up so many meds and getting more organized. But telemetry units are very fast-paced, lots of turnover, you can't change that. If you don't love it now (some like the excitement), you won't!!!
Actually, if you do like cardiac, you might be better off transferring to the ICU. There, you still have very sick pts - sicker, of course - but you have only 2 of them at a time. A lot more manageable!!! Or look into something you're really interested in.
Best of luck, you are not alone, and you will
make it just like we all did.