Trigger zones are :- The glan, the area just below the glans, the underside of the dick towards the glans.
NT= Non trigger zones. Yeah it’s a good idea to gently massage the base of your dick .press your fingers deep till you feel your pubic bone. It’s forces more blood but doesn’t help you get off. Also gently hold the sides of your dick and squeeze it just less than half way up your shaft. This should help. No vibrators please.
Well bodybuilding ( or any other strenuous workout) will neutralise the DHT in the blood. Also sleeping is a good option since the body would try to normalise all the hormonal levels in the body .