Different individuals engage in different method of trading. You can have same strategy, but different approach. Doing something wrong in trades, defines the strategy you are using and how you are applying such strategy. First, identify what you are doing wrong, then go about correcting it.
Come to think that not all things that youve been copying or following would have the same results when you do tend to use it.Same as you said were accuracy wont really be possible
because it will vary on some factors which would affect the outcome and we know that each person will really have different approach into things and decision making into various things.
Luck is somewhat part of trading but not literally a huge factor because it do mostly talks about analysis.