Bad BR Managment

Well lastnight around 10:0pm I had my 20$ set up in both accounts on FullTilt and Pokestars. I am sad to say i am down half my BR on FullTilt($9.23) and 3/4 my BR on PokerStars($4.92). My PokerStars BR went down so far due to bad BR managment. I started off playing a $0.10/0.25 cash game with some friends on CardsChat. I had ups and downs and was at once profiting from my BR but when my AK got busted by K2???? I sat out and told my friends I shouldn't have even played and that was going to play smaller limits. So now I am grinding it out at the $0.1/0.02 tables. This should be fun. I could just play an sng or tournament to try and bulk my BR but i think i can slowly build it back up and hen started making better BR decisions.