I know this may sound somehow impossible for some, but really, to be successful in trading, you need to have the mind of a machine. Now, you cannot have this if you do not have a strategy and you cannot have a strategy if you do not take your time to learn
If you ask me, it is not so much impossible as it is meaningless (I mean looking for emotionless trading)
Let me explain myself better, for instance, when using trading robots, you input your strategy, and they do it better because there is no emotion attached to it, except that they just do exactly what they are programmed to do. You cannot do well without a strategy and you cannot do well too when you keep changing strategies over and over again
And here you seem to come to the right conclusion yourself
It is not emotions that make you fail as it is not the lack of them that make you win. It is having a good and profitable strategy, so no trading bot will substitute or compensate you the lack of such. In other words, with a good strategy, your emotions are not going to get in your way
In fact, they will only make your trading more fun and ultimately more profitable as you will be more inclined and encouraged to improve on it via a positive feedback loop that emotions provide. For that reason alone, you shouldn't turn yourself into an emotionless trading machine. Instead, you should funnel your emotions in the right direction