>>5036352Edging will help you a lot. Get really close to orgasm, then stop when you're about to hit the point of no return.
Do that for a few weeks, and you'll start to learn your body's signals for when you're about to come. Then, after much practice, you can edge about 6 or 7 times and have an amazing orgasm.
Further still, you could try using a TENS unit when you get really good at orgasm control, because it constantly keeps you on edge at a point unless you can control yourself extremely well.