Go to a fabric store and buy a yard of the widest nylon, with the finest weave they have, should be 3-5 bucks and probably about 2 inches wide.

Strop on nylon, until you get the hang of stropping. Nylon is very hard to cut or nick.

Keep the spine on the strop at all times and stop before you flip and SLOW down. 60 laps per minute is plenty fast. The nylon will give you as good or better edge, until you perfect your stropping technique. Later you can paste your nylon strop.