With 5x multiplier, the chance of winning a single bet would be around 20%. (Due to the house edge, the chance of winning a single bet would be a bit smaller than 20%).
The chance of losing 60 times in a row would be around 0.00015%.
With this low probability, you may think that it's almost impossible to have 60 consecutive losses. If so, you should note that with playing more games, the chance of having 60 consecutive losses would increase exponentially. Assuming you need to win 1 million bets to reach your goal, the chance of not having 60 consecutive losses would be only 21%.
I know what you are trying to do. Be sure that you will finally lose all your balance.