You know that feeling like your brain just can't take any more information? It's almost like someone hit you with a shovel and you go around feeling dizzy.

I know that feel man!! You reach a point when you're just hustling through the motions to get it done with and not actually being productive which is why, as you said in your next post, take a break!! But during the break i'd rather have my mind completely fresh and not get revising or anything, just let your mind relax.

After you're done with your break, before starting take some time to quickly revise what you did the last session and then begin the new session.