Candlestick patterns are vague and imprecise.
You never know which candlestick pattern is significant.
You see an inside bar and open a sell trade later to find price hitting the stop loss and going up.
After a few hours another inside bar appears, you ignore it and find price dropped 200 pips on that inside bar.
You need a lot of experience in interpreting candlestick patterns.
Candlestick patterns work in all markets so what you learn will work for stocks, forex, futures, ETFs, commodities everywhere.