You can technically achieve 100% success rate but your trading equity will not last long.
This was what i observed in some PAMM trading accounts with 100% success rate, but they have huge floating losses. Hence, they will only liquidate positions when the positions are at least break even or in profit.
Such behavior will not do you good since trades can go against your
position longer than your account can withstand the draw down.
So, no, you better not attempt in 100% success rate because it is
impossible and everyone of us, at some point of time, will have some losses since we
cannot possibly outsmart the market and we may want to cut our losses to protect our equity.
You do not need 100% winning percentage to be profitable.
In fact, you need not have more than 50% winning percentage to be profitable.
As long as you adhere to good risk reward ratio, you can still afford to lose 50% of the time
since each trade which you win, you are probably making a few times of risk taken. Even for professional
traders who are skilled in selecting high probability trades, the winning percentage still hovers between 40% to 60%. For beginners, you do not have to be discouraged if your winning percentage
hovers around that range too because it is perfectly normal. In fact, you only need to focus on taking good trades with good risk reward ratio and your profits will be taken care of.