Bad Swings And Bankroll Management

Sunday i learn a lesson that i will not soon forget about the game of poker.I woke up Sunday morning with a pretty good out look on the day.I had about $100 in my acct,and was looking to on on it as well.
I was also registered for the Sunday $100,000 on PokerStars as well;And i was feeling pretty good about going deep in this Sundays tournament.But there was one thing that i have been taking for granted for the past few weeks.
Number one was the bankroll that i have been using to play,with only a total of 10 buy-ins was a mistake! But what really made it worse was when i started to multi-table becuase of my recent success playing the $10 levels.
I truly feel that once i started to multi-table it was a big mistake game and bankroll wise.I would get alot more volume in as i wanted but my results dropped tremendously.I would cash like one game in three;Or i would have a nice run of 3 of 4 cashes.
But mainly i could only muster up being a break even player while playing two games at once.Another thing that i did not factor in was the down swing of multi-tabling. As i ran very bad on Sunday dropping 7 of 8 games and busting my entire roll in less than 8hrs.
I have learned a very hard fought lesson about bankroll management and running bad.Yes i could sit here and complain about the donkeys and the bad beats;But the only thing that i can really do here,is be pissed at myself for knowing better and playing anyway.
I have a rule about losing three buy-ins in a row;That i totally ignored and i payed the price for it. All of the hard work and long hours have been spewed away becuase of my ignorance.And now i have to start all over again and this time i will have learned from my mistakes.