I get steamed listening to people ramble on

I get steamed listening to people ramble on Just gotta blow off some steam, sorry in advance for ranting. I just realized why I get subconsciously upset listening to some people talk. It's a pet peeve definitely, meaning that my anger is somewhat irrational but definitely very real. One of my close friends is a major culprit in doing this a lot. He just talks on and on almost mindlessly sometimes when I see him, putting very little thought OR effort into what he's saying. He's just talking to talk and it's kind of annoying honestly. I realize another depth to this is that, to me, he has the power to speak freely whenever the hell he wants, and exactly how he wants. This is something I may or may not kill for - and he uses it to just droll on about meaningless bullshit. He also mumbles a lot, which drives me up a god damn wall. Like - SPEAK UP, man. Speak with conviction! Mumbling, and then having to repeat yourself once or twice, is a waste of fluency. This is, of course, in contrast to myself - meaning that I have to put a tremendous amount of effort in to speaking every time, then I feel the pressure to make sure whatever I do end up (trying to) say has some meaning or importance to it. IDK man. I recognize it's mildly irrational. Maybe I'd be the same way if I was never born with a stutter. Feel me on this? Anyone else?