To be honest, cryptocurrencies are pretty much gamble and no way you can change it with """ analysis""", chart, graph and other to justify your choice or investment.
You seem to have mixed it up, being disciplined in trading is prominent and you need to understand that trading is not gambling.
Discipline can be a way you guard yourself to maintain a consistent rewarding trade pattern that brings profit.
E.g if you decide to always take 2-5% daily, then you need discipline not to force ur trade over 5%.
In short, ability to stay true to your own ideology and principles is discipline