There appears to be alot of X hrs and from X o'clock to whatever cut-off time in the evening or as in my case early morning

Upon reflection I feel this wasn't necessarily the best way to approach the exams and forces most students to make a mountain out of a mole hill. Though the preparation for the ATPL exams is a trying time to say the least you can nevertheless decrease the burden upon yourselves by aiming for quality rather than quantity. Rather than the blind rush into the workload try and facilitate days off, like all athletes you train hard but then also require rest periods for the body to heal and thus fitness to rise.
When I first started it was like a bat out of hell and I would wake early in the morning to begin studying and then goto my 9-5 job upon returning I'd hit the books before a brief break and then back to them all the way upto midnight or more. My wife finally caused me to have a reality check and instead started to study with days off and also numerous breaks throughout study periods whilst also ditching the early morning sessions. With this increased sleep and consequently reduced stress I started to make far better progress than before. I have maintained the same routine ever since and can see the marked difference from before where I'd constantly go over and over the same subject matter because it just wasn't going in.
Just my 2 cents worth, I realise that everyone's different but to run a marathon you shouldn't sprint. If anything save that for the brush up sessions, you'll need it.
I wish all my fellow ATPL peers the very best of luck!