I want you to achieve many edges, while NEVER overstepping the line to release
Get a timer for 1 min. Str0ke and reach an edge, but only within that 1 min. Now wait 1 min without touching your c0ck (soft n1pple play allowed!). Back to str0king/edging for 1 min. Stop and wait for 1 min.
Again, again, again.
Comment here how many edges you have achieved.
You shall achieve at least 10 edges - you do the maths.. a minimum of 20 minutes.
How was it?