This just comes from experience. Be very aware if you had a good streak and be more careful than you normally would and really you should probably restrain yourself and try to do nothing unless you are really, really sure because the hubris, the arrogance which comes from a good trade or certainly from a lot of good trades wether we like to not we are all human. Probably you should close the window and read a book or something and do nothing for a while.
Jim Rogers is a legendary investor that co-founded the Quantum Fund and retired at age thirty-seven. He is the author of several investing books and also a renowned financial commentator worldwide famous for his contrarian views on financial markets.