is it normal to work 9am to 5pm as an intern

im 18 and this is my first internship and honestly i dont know if this is normal or not

i study IT development and im doing an internship at a small company in meknès and the schedule is basically 9am to 5pm almost every day

im not doing small intern tasks either they make me work on real projects for clients all of that stuff and sometimes i feel happy because im learning a lot and i can actually feel myself improving but other times i feel overwhelmed because it already feels like a real developer job even though im still a student and this is my first internship and sometimes they leave me alone debugging problems for hours trying to figure everything out myself

is this normal for internships?