Once you’ve made a nice profit start to look for your exit signals. Once you have made a lot of money on a trade it is tempting to try and milk a little more out of it. You need to watch your signals and trust them to tell you when it is time to close a trade. One thing to make this easier is to always have a couple of trades on at the same time. The best way is to plan your trade before you enter and know when you will be exiting. Either from a set point you want to get out or when your indicators say it is over. Either way there will be another trade coming along soon.
One way to protect your profits is to use a manual or an automated trailing stop.
You can also plan for a set amount profit by planning you trades. This will take the emotions out of your trading and let you trade with less stress and confidence.