I'm just starting to code on EasyLanguage and I can't figure out how to write code like this:

If the last trade was negative then don't do any trades for 5 days (or for 50 bars).

?

Might be able to use the NetProfit call. I haven't done this to reduce trading but I have used it for scaling and compounding within a strategy. There is also OpenPositionProfit. The NetProfit does not include current position until it's closed I am pretty sure.

Possibly something like an if statement with NetProfit < NetProfit[1] to then set a bartimer. Could call currentbar + 5 then set entry parameters on that. Or just a countdown.

I really don't recommend this though. From my experience, my best trades are typically just after my worst trades. It would be better to find out why those market conditions might be bad to trade for a few days and limit through an indicator. Let the market tell you when to trade rather than an arbitrary timer.

If you cannot identify then you cannot filter it and that's okay. Edges don't tell you when a trade is going to work. Edges only tell you that you should be profitable over a larger set of trades. The key is to trade every single one though, unless you have data to suggest you shouldn't.

PositionProfit <- will give the last position profit
BarsSinceEntry <- will give number of bars since entry

You can use the above two EL functions to delay the next trade.