I believe that even Sorcerer's may not know when bitcoin will rise and when it will fall and thread topic should not make you think we can buy and sell in shorter period, what you needed is buy and buy and buy more bitcoin consistently with the dollar cost averaging method and hodl for a couple of 4-10 before even having the thought of selling and when selling it should not be all but small portion and still keep buying.
Sounds so funny, if it were that easy to predict the market the market it think most soothsayers and sorcerers would've been the richest people in the world cause they would've forseen Bitcoin getting to 100k in 2009 0r 2010 and bought as much as possible back then, but I'm aware of some traditionalist and soothsayer in my locality that have zero knowledge of bitcoin or even close to being rich as Saylor, it's not just some magic or abracadabra, it's reality and can only be controlled by supply and demand of everyday users.
Anyways there's no proper way of owning bitcoin asides buying and holding for long-term and anyone that thinks there's a shortcut to it by going to soothsayer or a sorcerer to predict the future should wake up from their slumber and do the needful like every other real investor, which is buying and holding for long-term like you've just said.