Have you run bloodwork to see how much testosterone you have left? Only way to be sure.

Do you have access to other steroids or bodybuilding 'supplements'? The deca should have lowered your testosterone, now if you also take an aromatase inhibitor like arimidex that should lower your estrogen, and should theoretically crash your libido.

Ok, after I'm off Deca and it seems, my testo was very low instantly over one month after one month Deca.

It's a nice way but the injections itself and the muscle pain any days after injections are not very nice.