This script uses Bollinger bands but with a VWAP as the source, it uses the high crossing the upper band as a buy signal and a low crossing the lower band as a sell signal
Its default settings are for a day chart - Crypto 30 periods, forex 24 periods and stocks 20 periods, which basically line up with a month per asset class
ive seen good results in crypto and stocks, settings used between1% and 10% equity per trade with a 0.1% fee which lines up with Binance fee structure and $25 per trade which lines up with Commsec on the ASX