M.Y.
Oh my gosh, we could not be more alike! (Seriously, I'm also 24 and my son was born the day after yours...weird.)
My son has been doing all the exact same things--mostly I've just been putting up with it and hoping it passes. He's getting a bunch of teeth, to boot, so I've been trying to keep the little guy distracted. We've been eating dinner earlier so he doesn't have a meltdown during dinner and then I just try and play with him until 7:30 when I take him to bed.
What time is your son taking his midday nap? Mine goes down around 11:30 and I just try to ensure that he gets at least 1 1/2 hours of sleep...I turn off phone ringers, try to keep the dogs quiet, but even that doesn't always work. A lot of the time I'll go run any errands I have around 3 PM and he always cat naps in the car which makes it way easier for him to make it to his bedtime w/o any spaz outs.
Good luck M.!