I was just wondering “why do I always make huge/good profits on my demo account”.
Thus the only way to really test any strategy is to trade a live account thus losing a couple of K first?
Emotions can be a big part of it. There's another aspect also. Demos generally are much less likely to experience slippage and requotes. If you make trades for only a few pips, this can turn a profitable strategy into an unprofitable one.