Treat each decision independent of the previous decisions and without bias. I never tilt because I've internalised pretty much everything that is written in this thread. You should realise that 200% ROI is unsustainable, so you were undoubtedly on some positive variance and now what's happening is negative variance.

Do yourself a favour and turn off your luck line ... it will drive you insane and isn't really a good yardstick. Also develop a just don't give a f*** attitude. If you are ecstatic when you win 30BI in a day and depressed when you lose 10BI in a day, then playing poker is going to be a pretty emotional roller-coaster for you.