Another thing that I have been doing for some fast moving scalps is that I add to the trade (double up) for a small portion or better if it goes well, so that I secure the risk of the original trade. I.e if I start a trade with -20pips stop loss and a +100pips target, but the trade progresses very slowly with small choppy movements, then I will add to the trade and secure one or more really small scalps - so that I get a +20pips profit from those, or better. Then I can relax totally with the original trade. Of course, 20 pips is 20 pips and it's stupid to let something like that go if you "know it will be stopped". But sometimes the markets move really fast from protracted periods (stalking/creeping, then breaking out), and you just want to relax a little more and decide using a longer timeframe or get more background, time to see the confirmation or cancellation of your original setup.
That suits my style of scalping pretty well. I sometimes do this for different pairs as well. E.g I have a slow moving EURUSD trade with a longer target and "little risk" for a drawdown, but then I see a nice opportunity for small profits on the EURJPY meanwhile - so I secure those as well, being "doubly exposed" on Euro. It just helps with being relaxed about a trade and getting some more time to divulge the trade setup.
Of course, if you lose on the supposedly "securing risk profits", then that is a sign that you might be having a bad day, and that your take on the original trade is not that good.