Masturbation

Try pulling your dick down between your balls (or to one side) and tickling the area between your anus and your crotch with the glans. If that doesn't make you cum quick, nothing will. My dick has a downward curve, so that helps. It probably wouldn't be possible if it went the other way. Even so, if I get really hard I can't do it.
 
try this:

lay your dick off to the right flat on its back so the underside is facing up. Do this while lying down in a pair of nylon speedos (must be 100% nylon) and one size larger than you would normally wear. Then proceed by rubbing your dick through the speedos.on the underside near the base of the head. Pull your dick out when you're about to cum. I find this sensational and since discovering this method, I've never done it any other way.

The nylon is the same material that is used in lingerie
 
It's always struck me as odd that the same guys who swear by long foreplay and sensuality when with a partner, prior to intercourse, forget all about that when they are alone. If you're having a hard time enjoying masturbation, you might not know how to make love to yourself. The post about sex being "in your brain" is very true. Try relaxing, taking a long hot shower, or spend time in a hot bathtub or hottub. Then get out the baby oil or massage lotion. One of the best places to massage is your inner thighs. Ask any masseur; the moans start when you start working on inner thighs.
Additionally, experiment with different speeds, angles, different lubes.
I would add one thing to putting lube into a condom. You should then slip the highly lubed condom over your erection and gently (and you'll need to experiment with tightness) wrap everything in an ACE bandage. (If you're not in the US, and ACE bandage is an elastic athletic wrap, usually in 3- and 4-inch widths. Experiment here, making a kind of "fleshlight" out of the bandage and lubed condom. Let me know what happens. Dennis