I hate watching my own work. I've always hated it.
Always.
Even at the beginning, when my jobs were few and far between, I just felt embarrassed sitting at home and watching myself in some random scene. Back then, I thought it was embarrassing because it wasn't enough. I was better than the girl that said "Hi," even though I knew it was part of paying my dues.
Despite knowing that, I still hated watching my work.
Yes, you can learn from it. Yes, it's productive. And yes, it's something to be proud of (even if it's just one line, or one word...you beat out a lot of people to get that part).
But it is also: mortifying, self-indulgent, a little ridiculous, and breeds self-doubt, paranoia, and criticism. Unless you're a narcissist, and can watch yourself over and over again. I just can't do it.
My first date with my boyfriend, which was many many moons ago, he said to me, "So after dinner my buddy's girlfriend is having a party for this show she's on tonight, if you wanna go."
I said: "Oh fun! What show?"
Him: "This thing called, ________, it's on
[major network], and she's guest starring."
Me: "Is her name [blah blah]?"
Him: "Yeah! How weird. Do you know her?"
Me: "Well yeah. I worked with her on that episode. I guest starred too."
Him: "Wait, in the same episode? So you're on TV tonight?"
Me: "Yes."
Him: "Why aren't you watching it?"
He was so confused, and I remember the look on his face so vividly (the "what kind of actress doesn't want to watch herself on TV-face")
Me: "Because we have a date."
And I meant it. The date was more important to me.
Meanwhile, for him, I think he saw angels, and thought I was the most non actress-y actress he'd ever met. Which is probably why he's stuck around for so long.
I think you have to trust your work, enjoy the process, and walk away from it. Because so many factors can happen by the time it airs that can make you cringe (they edit it and leave your worst take, they cut your entire scene, you hate how you look, you start self-censoring the dumb looks you make, etc, etc).
Because there's nothing worse than inviting people over to watch you on a show, only to realize that all of your scenes have been cut out. The awkward silence of friends sitting there so sympathetically and the one brave one who asks, "Was that it?"
Not worth it.