I use one indicator now, BB, really backed off them cause, well...been watching them so many years, I have memorized what the charting does to make indicator wiggle for a signal, I just use plain volume at bottom of chart, either increased volume or decreased can give signals. Gone back to more of stock entries, less day trading and higher percentages. I always thought momentum indicator waste of space, price rising fast I can see the slope of middle of the bars, mom or stochastics will lie of what is actually happening some of the time for me. Even scalping, cutting back number of trades. Concentrate on lower drawdowns so as to increase size.
Do you know what 90% of profitable trades time of being in the trade? So say at end of this time, what is your plan? You stick around and let stops take you out or make new target of breakeven plus a tick? Good trades normally for me allows me to get in and don't come back, if the size of the bars too large, I know they going to test some area so better to wait and get in better(lower) if long. Speed or lack of price most do not study, fast and slow seldom are good, one often reverses and other don't go anywhere.
Have you memorized what end of extremes(trends) do? As in charting and not indicators.
Do you have rule of when price goes positive by so much you go to breakeven stops?
I have used RSI and still use MACD for years, but don't use them as books show. I have learned RSI well and know what chart doing and what the RSI would be doing to give signals.
Size depends on knowledge increasing, drawdowns decreasing, but has nothing to do with size of the account. I have known some guys lose few million cause they did size when they had no clue how to trade.
Good luck to you SYS.