Hi @roger_rabtz, that approach is called hedging. See here for details:
Note, in some instances it may be a good strategy, but generally, for retail traders, it’s not. Two things to consider, if you hedge one for one in position size you will not make or lose money from the trades themselves - so, why bother? The other is, by opening another trade, you’ll lose money in commissions and/or the spread. In most cases, it better to exit a trade that you think may go against you rather than open another position in the opposite direction.
Here’s another forum post that discusses:
Lastly, be aware that in the United States, for a given account, hedging is not permitted.Here’s a page that explains and discusses this regulation. It also mentions a legal workaround - have two accounts.
https://www.quora.com/Why-does-the-U-S-ban-hedging-in-the-forex-market
Hope that helps!