Your exact daily trading plan is more about your position size, stop losses, close point for a successful trade, for example. In this situation you do have a profit target, expressed apropos the number of pips you may take if the trade is rewarding. It is not a good idea to let trades drift, looking for unlimited profits. Some folk do only close out 1/2 their position at a certain point, it’s right, but if you’re going to do that it should be a written part of your intention, not a snap decision.
Don’t carry your planned method in your head where you can easily get tempted to change it. Write it down together with the guidelines of your trade apropos the signals that you’ll act on. That way everything is clear and you can dump some of the stress onto the paper. Foreign exchange trading is a stressful as well as a dodgy business, and having a well thought plan is critical to the success of your enterprise.