OK then, you fold and from now on you only put your money in when you are certain you are an 70% favorite. Ignoring blinds etc. Lets say it takes 4 of these bets to get up to the stack size you would have had if you called an won.

Please correct my very simple maths but I make it
100 x 0.7 x 0.7 x 0.7 x 0.7 = 24.01% chance of winning them all