Here are some ideas I have used with my passionate 22-month old.
1. When he's screaming because he can't wait for his sliced banana, I sing the "waiting song", to the tune of "Are you sleeping/Frere Jacques"... "Toby is waiting" x 3, then I say dramatically, "And it is VEEERRY Haaaaaard!" I get fake-emotional, pause for effect, and repeat it. Eventually he stops crying after the third, "Toby is waiting" and waits for the "verrry haaard" part. I wait until he is distracted from the tantrum, then quickly give him the banana.
2. I taught my kids to sign "please" before I gave them what they were crying for. I firmly and calmly pat their hand against their chest and say "please" then give them what their crying for right away, even if they're still crying. Eventually they pat their own chests, and say please.
3. Blame the object. "Oh, this snack isn't making you happy? Okay. I'll put it back." Only when he has decided to be happy about the graham cracker that I already broke in half does he get it. If he doesn't get happy, he doesn't get a snack. "Oh no, this is the snack. Would you like it?" I don't want a cracker that makes my son sad!!
I had the sweetest first child (now 5), I thought that by my excellent parenting (LOL)I had given her calm emotions. Both my boys proved otherwise-- I have since repeated to myself often, I CANNOT CONTROL: my child's emotions!! I can only pray to help him learn to control them himself...???
But neither of my boys were quite at the level you describe. You might talk to your pediatrician, and see if there are any other resources available for you. As an early interventionist I worked with lots of kids, and saw some that were amazingly high-strung calm down with good occupational therapy. Or just take the cushions off the couch and let him jump on them awhile. Better yet, do it with him and get your frustrations out too!
If all else fails, lock yourself in the bathroom and repeat, "This too shall pass" until the walls look pink. All the best!