Is it possible to boolean self geometry if its intersecting. Because Boolean SOP as A and B but it doesnt work since it needs a different B or A.

Boolean does not require input B. If you connect the Boolean node to your Geo, as long as the Resolve Self-intersection box is ticked, you will get what you want - see file attached. Unless I misunderstood your objective.

DwarfVader
Boolean does not require input B. If you connect the Boolean node to your Geo, as long as the Resolve Self-intersection box is ticked, you will get what you want - see file attached. Unless I misunderstood your objective.

Somewhat works with the plane only but i was trying to boolean this, When i add the boolean sop the mesh disappears. And when i do use boolean i get 2 points on the plane i dont know why.

I'm a year late but its set to solid it should be set to surface.