I'm sorry, but I'd rather get 3 and get max grades then get 4 and not get max grades.
A lot of people attempt to take 4 and then drop 1 later if they can't handle it. Also it depends how dedicated you are I guess. I'd find 5 impossible aha
I did 10 GCSEs, and 2 Level 2 BTECs (Have 9 B-A*s & 2 Distinction*). 3 A Levels & a Level 3 BTEC. In September hopefully doing BA Ancient History & Archaeology!