I love greasing up my cock and pumping it until it is all bloated. Then use my e-stim device. It try setting the e-stim just beyond my comfort zone. I then will go back and forth between the two for 2 to 3 hours while watching porn or chatting on line.

Hard to answer without knowing what you are doing.

My cock has several sensitive areas that I can work on independently of in combinations.

The shaft is sensitive on both the outside skin and the inside structure. So I can stroke the outside skin. Usually with some sort of lubrication. Soap, hand lotion, oil, etc. Just stroke up and down. Sometimes extending over the head.

Or grab the shaft firmly and slide the skin up and down on the internal shaft structure. My cock is pretty big so my hand fits between the head and base and gives me about 2 inches of stroke. Stops just at the head. I am circumcised.

Then there is the head. A technique similar to the stroking of the shaft works on the head. A bit of lube and just rub the rim of the head and just below it works great for me. I make a lot of precum so it works as a lube. Also, just rubbing and caressing the head is awesome. Don't go down the shaft much, just rub the head.

Also, rubbing the head on things is pretty exciting. Like flannel, or wool. Vary the speed and pressure.

Or get a sex toy. Lots of cunt like things that you could use. Good luck.

Prop up your ass over your head, and shoot your cum in your own mouth.

Make a masturbator out of a Pringles can and some foam, lined with plastic. Lube and hump.

Jerk it with somebody’s panties or bra and come in the cloth.

Lube up your cock and fold your legs up to your chest. By moving just right, you can stimulate your cock and cum in your lap.