How much work should i be doing to, at least get a 65 -75 for chemistry in my HSC, its the only subject im struggling with, like sometimes i get it but at times i cant, and atm im just trying hard to do well in my assessments, because i noe when i sit my HSC,it wont be all that great. Ive kind of given up on myself, because i think its too late. And like all my other subjects for eg pd , legal im 90+, and maths2unt and english advc im 80+, but arhh, any advice anyone, please i feel like crying at times.