I started trading before computers were available for home use.
In those days, I plotted the chart on graph paper. And to plot moving averages, I'd to do calculation with simple calculator.
I did technical analysis with all the elaborate complex indicators and Gann and Sierpiski triangle and harmonic pattern and DiNapoli and ...
and all those stuff.
I have deleted all those nonsense.
Now I am left with just candlesticks. And I am glad my chart is free from contamination.
Occassionally I may draw things like trendlines, some key notes and that's it.
All the best mister.