Trading based on OI change and Price Action - Part 1

I have used the S/R levels as per the option chain volume, alongside I also used price action for trend analysis and breakout/reversals. For indicators I used Pivot point with Fibonacci & camarilla and regression channel for trade confirmations. I had a bearish view for today's session but for week i have a bullish view. In this video I am trying to find a proper support level to carry a Long call for Monday. Although market seems to be rangebound still my target is for 18200 on Nifty 50