preparing p7 revision

hello,

i am in the revision phase of p7 …and i m encountering 3 major problems while studying and need precise help.

..since three four days when i start a topic .(a exam question ,,or technical article etc) i lose my focus and i realize nothing is getting grasped …in mind ..i feel like just finishng it up..the moment i close and recall those points i cant do it

..second: regarding the above matter i say to myself not to start for the while and relax for the moment ..but in that while i go into a panic situation of not studying !

….thirdly ..while reading a particular topic i get a war in my mind of so many other topics still to be read ..and i jump from one to the other !

I m quite uncomfortable …although everyday i start with my targets to achieve ..since the beginning of the study i set a target and try to acheive but now i m losing that strategy ..

i dont want to waste any time ..its very important for me to pass this attempt .as few days left and this panic thing is causing me low confidence.please help me in this regard