I am one of the Dinosaurs that was trained almost 40 years ago.........Just so you see the difference between then and now ...My "Basic" course was 12 weeks long with 3 hours per session 1 1/2 classroom and 1 1/2 pool for a total of 36 hours .It covered just about everything that PADI has seperate courses up to about but not including Rescue Diver but it also had some elemenst of that in it.After the course we did 2 dives in the sound then 4 Ocean dives to get certified.
My "Advanced" course was also 12 weeks another 36 hours with mostly pool work which included such things as ...breathing off a tank with no Regulator on it and while doing this swimming from one tank to another without surfacing for 20 minutes or so Oh and then we did the same without a mask.Complete equipment change with another diver while submerged.Buddy breathing with a snorkel.....yeah I know a snorkel.......WE just started using Horse collar BC's with only oral inflation so everything was done with a Horse Collar and then without any BC. they had a CO2 cartridge in case of emergency to activate.I think we did 6 or 8 ocean dives to get certified oh and these ocean dives were wreck dives off NY/NJ.After passing the advanced course we were also given the YMCA S.L.A.M. ( Scube Lifesaving Accident Management )cert. which was/is equvilivent to the Rescue Diver.
So after Basic and Advanced I had 72 hours of training which is pretty high compared to what is offered today.
Thats how it was back then ....there is no comparison to todays training to back then.There are a lot of things I left out due to age probably
So yes I think you doing it now is too early in your dive career...you have a lot to learn and experience is the best teacher.