I recall when starting out (early 1980's) drawing a chart by hand, I didn't own any computer charting stuff back then. Was living in NZ. I bought this company's stock (Nautronixs or something....?) and my broker JB Were advised I should sell and take profits. I remember thinking why sell, the chart price I was following and drawing looked ok. After some mulling sold with a small profit because my thinking was he knows something I don't know. After I sold it turned into a multiple banger, something like 5x. That was my introduction into becoming sceptical of brokers.