Better Ending to a bad shift

So I work in LTC. My normal assignment is a unit with 25 residents. On my med-cart the narcotic drawer has 46 count them 46 cards of narcotics, everything from, Lortab to Kadian to Methadone. There are residents with multiple scripts of narcs. When I did my count at end of shift last night with the oncoming nursing there was an Ativan missing. I had signed one out from the card and gave it, but have no clue (serioulsy) where the other one went. The rest of the count was correct. So in turn tonite I was wrote up for a med error. Which I understand. I've been at the facility long enough that the DON and Administrator know that I didn't swipe it but made a mistake somehow. I'm just bummed that I have made the mistake because I'm a new nurse. But nobody seemed mad, my DON wasn't extrmely nice about the whole thing. I'm guess I'm just wondering what med error early in your career could mean. My friend who is the other LPN on my unit told me not to stress she's been a nurse for 20 years and says that she's wrote herself up for med-errors in the past. So should I really not stress, but take it as a learning experience?

There was resident readmitted to our facility, not on my unit. She came back in worse shape then she had been the first time she was there. She came from the hospital with an order for IV antibiotics. She has a port but the RN that was there tonite couldn't acsess (sp?) it, so the house MD gave a vo to start a peripheral. So two LPN try to stick her and don't get anything. I'm the only IV certified LPN who hasn't tried so far. so they ask if I want to try. My friend (bless her heart) says that I should give it a try. So I do I go into the room with her nurse and tie her off and I'm poking around. I found a vein that I thought I could use, so I went for it. And what do ya know FLASHBACK!! This was the first IV that I started on my own since I got my license. I have to admit I was kind of proud of myself for getting it after two other experienced nurses had tried with no luck. It felt good to do something right after being wrote up for doing something wrong.

I've wanted to be a nurse for a long time and a good nurse. Sorry to be lengthy I just needed to get it out. My SO is not in the medical field, so can not give me any input. Is the beginning after getting your license this hard for everyone? I just want to do my job well. I feel a little over whelmed at times and stressed and even after doing something right, I'm petrified of doing something wrong again.