Crypto trading is getting more and more technical as the days goy, and the formula that worked back then in 2018 is no longer accurate at this moment 2021 came with a lot of upgrades with many exchanges coming up with new features on the exchange.
So being forced to ask what are the most updated guide for newbies that have been out of trading for some time now.
I'm confused on the formula thing you were saying OP. Exchanges may have been upgraded some features on their platforms but the approach on Trading didn't change. My guess is that you need to study more because it might help you to gain more knowledge that might be the key to your answers, to gain profit again, to start trading like you used to. Sometimes old knowledge about trading is outdated, so don't be afraid to grow more rooms for your Trading experience.