Yes, this is exactly what is happening to me. Unlike what others have said here I do not think it's because I'm greedy. I've been hodling since February and it's time for me to up my game. If the whales are doing it I should be able to make some kind of decision that will have a positive outcome rather than just hodling and hoping for the best. But yes, I pushed that sell/limit button many times to only cancel the order a few minutes later. I plan on only trading Bitcoin but I want to do it when the whales are moving only. These small day-to-day, week-to-week fluctuations make me nervous and it's just a guessing game.
But seriously, has anyone used Gunbot before? A quick Google search seems to find paid advertisements for this service. I expect the money to be made is in the selling of the software and not what it can actually do for people.