Do not look at people who are worrying you with the potential of the bear market. It will always happen that is true but the reality is that we are talking about never having a bull market? Of course not. It means that even though bear market is unavoidable, the bull market is unavoidable as well.

So, if you find yourself buying at the top price of a cycle, then you could always keep on buying more and more during the fall as well, meaning you will drop your average, and then when the bull market comes and you reach higher than your initial top, you will be able to sell for a greater profit.

The only thing you need to be careful about is not to spend all of your money at once. If you invest into something all at once then you will lose money when it goes down, just assume that you could make a profit later on by holding some if it in cash.