Your exact day to day trading plan is more about your position size, stop losses, close point for a successful trade, and so on. In this example you do have a profit target, voiced in terms of the number of pips you will take if the trade is profitable. It isn’t a brilliant idea to let trades drift, hoping for unlimited profits. Some folk do only close out half of their position at a certain point, it’s correct, but if you’re about to do that it should be a written part of your plan, not a snap decision.
Do not carry your planned system in your head where you can simply get tempted to change it. Currency trading is a disturbing as well as a dangerous business, and having a well thought plan is critical to the success of your enterprise.