Supply & Demand Multi time frame

I have been learning S&D from last one year but when it comes to actual practice, I get confused with the time frame and where to actually execute the trades. I want to try the paper trading first but still I am not able to create a consistent setup to test. Also many time my zones just breaks and prove work at against the zone. I am sure there are many things I might be doing wrong and thus I need some advice or guidance how to work on it. I want to be a positional or swing trader due to my full time job Please advice