Studying 2 hours a day for 2 years is a hard work.
learning new musical instrument is hard work.
Remember hard work does not mean difficult or hard. It means regular and consistent with focus mind. Remember it’s super easy, we have to repeat the simple task(say reading for 15 minutes) multiple times, we called this hard work !! lots of people are doing study, roughly 1 hour per day for 30 plus years and still situation demands more..