How do you deal with procrastination?

so today I did my 10 pages out of 70 i need to write today, and since i did the first 10 pages fairly quickly i now feel like i have conquered the world and have been procrastinating ever since. instead of writing the second 10 pages and feeling even better i chose to browse the interwebs and waste time and feel worse later. i wonder which wires in my head are crossed wrong.

is a lobotomy a solution??