I have grown up with large dogs my whole life. I now own 2 medium dogs of my own. I am at home with the stronger breeds & also love little dogs.
One of my dogs is an epileptic & has been on very strict medication timetable for years. So I am very used to giving medications.
I started training to become a vet nurse, which turned out a lot more emotionally draining than expected. Never completed the course. But did gain lots of valuable experience.