I never understood the technical analysis part either.
The only strategy that works for me is to look at coins that have a good long term strategy and hold them long term.
Day trading is just too risky - seems too much like gambling to me and just like gambling most cryptos are rigged. In this case it is by the people who hold large amounts of BTC and can shape the markets to their will.
Unless you know these people and you know what they are going to do before they do it you are taking a huge risk.