If you want to be an investor or a trader you need to accept that you are only a small fish and that sometimes you will lose money when the whales make their moves, so the only way to protect yourself completely from the whales and their manipulations is to get out of the market and never comeback, but if you are really enthusiastic about the technology behind bitcoin then that is not an option, I suggest that you try to learn as much as possible about money management since that is what differentiates the ones that are successful from the ones that are not.