If your not sure when to invest, then wait until it finds support. Don't pander to FOMO, if your really worried about the price sky rocketing and you miss out, then invest a little at a time on dips. The drops are healthy because you find out where the support levels are and what the true value of the coin is at that point. Then people start to put money in and away you go. I think every coin is manipulated by whales to some degree but the coins that keep rising are the ones with good fundamentals, like Stratis