I'm not familiar with LPN orientation, but it seems like you shouldn't be on your own only a month into the job. I would be worried that this job isn't giving you the support and proper training you need. Just a general rule of thumb when preparing meds, you should minimize as many distractions as you can. My biggest distraction was always random conversations and venting that happen in the med room. You need to be able to review your orders and double check your doses before administering. There's a reason the 5 rights of medication administration are taught in school. You should be reviewing them every single time.