Rectangle patterns and the ascending triangle patterns that break out into all time highs are the most profitable trades. The pattern duration of 4-6 months are the best to trade. MRNA is a textbook example.
My sizing of each position is dependent on the pattern and duration. Keeping a trading journal is the best way to analyze what is working and how to size your positions. Out of ten trades, five of them are losers. Two of them are break even trades. Only three of them are winners. Really only one of them is a home run. Pareto’s 80/20 rule is alive and well.