Learning Technical Analysis (TA) is only part of becoming a successful Trader. After you know TA, what do you do next? Effective Trade Documentation affords the trader many luxuries, one of which is the ability to learn from past mistakes - of which there will be many. This also helps to show any third parties that you are not a punter but a Professional Trader.
We cannot stress enough how well-thought-out Trade Documentation/Record-Keeping guidelines are. Over time, the collected data will greatly improve your journey from beginner to established Traders.
If you currently have no process of recording your trades, we strongly recommend you commence one immediately.