If you are trying to see where you should be selling, that means you are not going to really be a good investor, just focus on being a trader if you want to? That way you would basically buy and sell depending on whatever you think you should be buying and selling.

However if you want to be an investor and really not get out unless something major happens, that way you would know that you get in for the long term and if you are in your 20's right now or early 30's which is the biggest crowd in the crypto world, you would basically be super rich by the time you should be retiring. The aim is not to go on a cruise ship vacation when you retire, the aim is to own a cruise ship of your own when you retire, so trading is not the solution for that at all.