The amount of hours depends on the subjects that you do and how slow/fast you can get through the materials.
What you are doing is fine, I'm aiming for 5 hours a day and a one week break out of the 6 weeks these holidays of pure fun :party: and this is coming from a person with 0 hours of...
Definitely definitely do advanced. The level of difficulty is not that different plus the scaling for standard is pretty bad. It's also really hard to get a good mark for standard. Coming top 15% in Advanced is just as good as coming top 3% in standard, according to people.
Oh and about the...