How to tell the expert not to open more than three trades in one day

For example, with the every n bar block, I say trade every 5 candles that have passed since the last trade, if the condition is met. For example, 20 candlesticks from the last trade, a bet was made but no trade was made.

Hello friends, when I use the block once an hour or once a day or every n bar. My expert works very erratically and leaves many positions, please help.