I learnt ABCD (123) trading in 1994 and Im still trading retracements after trading lots of different methods. Ive read about order flow and market delta but I havent started using them yet. On my charts, I use horizontal and diagonal trendlines, Fibonacci retracements and extensions, MACD 13,21,8 , 55ema ,and 5 ema crossing 21 ema. MACD is a lagging indicator but is often useful to confirm direction by the blue line crossing the red line or the lines being above or below the zero line.
For my top down analysis, I look at the weekly, daily, 4 hour, 1 hour, 30 minute and 15 minute chart in that order to find a 123 setup and then I stick with the entry time frame until I exit the trade. Therefore, my entries can be on the 15 minute, 30 minute,1 hour, 4 hour or daily time frame. I studied support and resistance zones by reading the book Naked Forex written by Alex Nekritin and Walter Peters.
Sometimes, I will take a bounce trade off a trendline. In this Dax trade, price bounced up off the trendline.