The price is not falling right now I think maybe what you mean is after bitcoin reaches $5,000 it suddenly goes down around $4,000 again, I think it is because trading bots are triggered so sell with that and some whales go with the flow.

Always trust your instinct though, if you will that it is not the right time then don't. But bitcoin will always soar high it is just a corrections in price that is why it goes down and I think it is normal for every market.