STOP It Bernie - Your killing me

Lets talk seriously just for a moment .
How do you stake Bernie?
I wager according to the amount I feel the individual wager deserves.
But what often creeps in is that the wager gets highly influenced by what happened the previous wager or three , especially if they were losers.
I almost feel compelled and obliged to wager heavier to get my bankroll back to its previous state.
I believe this to be a common theme with many Punters who have no rigid rules.

EDIT: - JOSE!!
If you gone that many wagers into a sequence without realizing a Profit , then it might be a brilliant idea to simply throw it all away in desperation and start again.