I'm not sure if I should do 11 or 12 units. I'm doing well in all my subjects but not very well for maths. I could either drop one unit of religion, meaning 11 units, or keep 12 so I have extra back up incase I screw up maths or another subject. What do u guys think would be better, 11 or 12? I'm just not sure because 12 units might be too much and then I might end up doing even worse.