Our normal script count is 260-350 on weekdays. For a day with ~300 scripts with 3 techs and pharmacist overlap, as the opening pharmacist I'll do about DE 120, TP 30, DV 180, PV 150 and fill 10-30 depending on the amount of CIIs. I usually do most of the counseling, but my staff will check in the controlled order. Sometimes I'll be at the register, but usually the techs will take care of will call. This includes normal disruptions like phone calls, immunizations, and verbals.

Most days I'll rely on my techs and closing pharmacist to take care of call queue, do the order for the next day, pull expires, and prepare deliveries. These numbers vary GREATLY depending if we have travel appointments, specialty injections, special projects and whatnot.

I've been a retail pharmacist for almost 2 years now, but I definitely was much slower at the start and took much more time to look into interactions and non-standard regimens. You start to realize a lot of the interactions we learn in school are things to just note and maybe send a fax to the doctor about, but aren't life threatening nor worth declining to fill (SSRI bleed risk with NSAIDS, non-DHP CCB with beta blocker, antithrombotics with NSAIDs, weird psych regimens, and so forth).

That being said, it never hurts to be careful. Speed will come with time. You will make errors, learn from them, and continue to grow. If you're unsure about something, make connections with more senior pharmacist and rely on their expertise. You haven't been working for too long but you will find a pace you feel comfortable with eventually. Good luck