In terms of learning reactions/ properties Ive done 2 functional groups a day. So today I did Carboxyllic Acids and Esters. If you do that you get through a syllabus pretty quickly without getting stressed.
I would normally sit down and do 10 hours of revision but I tend to find with chemistry that if you do too much too fast, you can forget things such as whether a reaction is under reflux/distillation if an acid used is dilute/concentrated.
But as most people will tell you, past papers are key.