This chestnut only comes with experience as much depends on the individuals betting tactics, if they are wrong then things will go
up no matter what you do. Its all a matter of believing in your own betting and riding out the bad runs, if you cannot do this then something is fundamentally wrong in the first place and that needs to be addressed more than thinking your having a bad run.
So whats needed is a bet to Bankroll ratio that eliminates the stress of losing, another Bank used solely for experimental bets and Systems and a slush Fund for pressing up what you consider either a very good bet or vastly overpriced. That way your opinion will quickly be told to you in a monetary sense in each category and a sensible Person can make an informed judgment on his Betting.
It has to be realised that not everyone can make betting pay and far too often on these Sports Forums its put across as an easy situation instead of pointing out how much one has to sacrifice in other parts of your life. I make this game pay but I dont think there's many who would settle for my lifestyle which is non-existent at times and gets to the point that any social activity encroaches upon it.
So basically you get what you pay for in Gambling, more of it means less somewhere else, a nice balance is whats looked for and if that means losing overall then sobeit. :drink: