Trading for 1-5 minutes is possible without indicators, you need to apply technical analysis, the same one that now works on the hourly half. On a small timeframe, it is difficult to understand where the currency is moving, but the technical analysis itself works, levels, breakouts, bounces. You can trade for a minute, but you need to get the hang of it, and you need to understand that fluctuations are frequent, and there are few points. If the profit is small, it's fine, but I think it's easier to open one trade than a hundred, for this reason I don't go below 1 hour.