Was not able to open the video on the first post. Divergence can't be traded as standalone signal, I use it as an exit point in my strategy. Let say if trade on 1-day periods I exit on 4-hour divergence signal.
I don't think trading near round levels is a good strategy. This tactic works better on Forex but still not profitable. I believe trading near support/resistance levels in conjunction with fibo & trendlines levels can be much better