Simply get the screen recorder software like camtasia or ZD soft. Record the trade that you made in the simulator mode. You can record whatever you like while you are trading, i.e chart with indicators,time and sales,etc.
I learned from Nihabaashi, who recorded every single trade for every single day. That alone, is the cornerstone of my trading to profitability. The same thing will happened again and again. I can't remember every hammer that I took, every shooting stars that I shorted. That's when the experience needed got shorten.
Actually I'm a newbie and started like everybody. Read every thread, copy every strategy. And my search of excellence bring me to Dr Brett Steenbarger's book. Talking about your strength and focus on it.
How do I know my strength if I dont look at myself when I'm trading? The best way is to replay and take note of how stupid I was for didnt take this trade and from there, take note, if this signal appears, I will take it.
I have focused so much on other people's methodology and ignoring my strength and weaknesses. From there, I will drop whatever indicators that I dont use, focusing on what works for me.
That's how I made it, focusing on myself rather than focusing on other person's method. Just get the idea from experience traders and try it on your own. Others find MACD very useful, but not me. But I knew myself. This has helped me. I dont want to say how long does it takes becoz its really short. Everybody starts like this and when you finally got there, the only advice that you can give is simply that everybody can make it if he really wants it. No secret.