You don't want any surprises with your full stack. If you backtest over 4 years then you may well have had 5 months of fat loss and 43 months of profit. You'll just see that you start with one of those 5 months. So you have to backtest with a similar period as the market is in now. It's also not a bad idea to split your stack. That way you can do robot bot for trading on binance (https://cryptorobotics.ai) with 50% (or so) and the rest yourself. Better safe than sorry.