Can't speak for OAT myself but 1 flight per day would be the norm for the UK. When you consider that you will need to get into the school, have a cuppa, get the weather, read the notams, see which aircraft you have (or don't have as the case may be) check the tech logs, then brief for an hour, do the walk around/pre flight checks, then fly for say 1-2 hours, then do the tech logs, have a cuppa, have a debrief, maybe talk about tomorrows flight then get ready to back seat your mate who will more than likely be doing the same thing....
I can only remember a couple of times doing 2 flights in the one day and that was to catch up on the CPL after we lost some time due to poor weather. I was absolutely knackered afterwards. Professional training costs a LOT of money so be careful not to overdo things as redoing exercises gets very expensive. Enjoy.