See how bitcoin bouncing off after each 30 cycle 4 hour candles ...now what i have done is the simplest thing which u can do to analyse future swings, pick a top or bottom in this case i picked up 19666 top and measured 30 4 hour bars progressing 30 bars i.e 30 ,60,90,120,150,180,210....so on and you see in the chart how it reversed each time when it completed 30 bar cycle ...change in trend happens at every 30 bar cycle you may not pick up exact top but u will be ready for a change in trend ...after hovering from 30 bars to 150 bars minor swings at exact 180 bar it broke the previous lows .Now wait for 210th bar and see the reaction and jump in ...there is more to this which cannot be explained here but the basic idea is very simple ,you can add this analysis to your trading tools and see wonders .