You only feel afraid and call market rubbish when you are attempting to make decisions without knowledge. Sure, there is no way you would not feel a bit tensed if you are just starting out to invest or trade, knowing that you may find it very hard to make some decisions, but the reason why there is stop loss is because the market could actually decide to go against what you expect and as long as the market will always be one step ahead, you have to play it carefully. If the market is slowly going down, all you have to do is to wait on the sidelines, and try to get a pretty good signal based on your strategy before you end up getting in.