My Trading Plan for Nifty

Hello,
Please find the Demand and Supply Zones and OI position in the Chart.
Nifty is trading in the sideways Zone: 12290-12400.

Plan A: If it will sustain above 12350 then I may sell 12300 put.
Plan B: If it will sustain below 12350 then I will avoid trading in Nifty.
Plan C: If it will sustain above 12400 then I may take a long position.
Plan D: If it will sustain below 12290 then I may take a short position.

Thank x