That is usually what happens to most people who enter the market thinking buying low and selling high is all that it is to a market and that is exactly what the OP described. However, the reality always end up kicking in all the same, and that is when they realize that there is more to trading that just that, which is the reason why the need to have a plan is always necessary. Unfortunately, no one can have a plan when they are ignorant of what they are looking for before entering or exiting a trade which is where it hits them straight on.