Backtesting is a crucial tool for me, as it provides valuable data on the potential performance of my strategies before applying them in real markets. It allows me not only to optimize my strategies but also to manage risks and increase my confidence in my trading decisions.
I recommend doing backtesting at least twice a week, even if you are profitable; it is a very powerful tool.
Most traders I mean those who knows what they are doing knows their strength and weakness in trading, and during their weak it shows that the strategy they were applying weren't working and then backtesting should be the right thing to do, though most people ends up doing that but yet still falls into some lapses since they aren't perfect with it.
As far as I know, backtesting is usually used to train or manage trading bots. If you're doing daily trading wouldn't the trading result show whether your strategy works or not? How would you backtest your daily trading strategies? On which app? It would be nice to know if you have a dedicated tool for that.
The language I understand from the op is like simply saying if the previous strategy doesn't work looking for a better one and play them could be the best than just sticking the previous, that is why most people who do back-test still results back to what they had been facing due to either greed or fear of a market pressure and forces.