I always get happy when I made a profit, and upset or sad when I am not. I think these are normal, as long as you do not get too emotional while trading, for example, getting frustrated and throwing table off from the seats are a big no no.
Interesting question! Both seem good to me. I use mt5 on fxview, and fxpro, altho fxpro has ctrader which I thought was nice, especially how the user interface is looking. But for some reason, I kept going back to mt5.
Most of the time, the prediction never lands unless you have taken a good amount of knowledge in understanding both technical and fundamental analysis.
And coming to emotion, they are quite to control so it is best that you get to catch the emotion before they get the best of you in your trading.
Best scalping strategy always rely on your trading style and your requirement, but make sure to look into broker that offer good amount of spreads and lower commission