Every week I get messages describing the same five mistakes, just with different tickers attached. None of them are about analysis. All of them are about behaviour, which is good news, because behaviour is the only thing you fully control.
The five, quickly
Oversizing after a win, revenge trading after a loss, moving stops instead of honouring them, buying breakouts without waiting for the close, and copying trades without knowing the invalidation. Fix those five and average analysis becomes profitable. Ignore them and perfect analysis will not save you.