Tomasino said: "Sometimes I get a little bit full of myself
and my own awesomeness. Then I try to peel a sticker and
realize I'm completely useless."[1]

I have a similar problem with ziplock bags. For some reason
they hate me. When trying I always tear them just under the
ziplock, rendering them pointless.

(Side note: with some stickers, I have found it helpful to
approach them as if I'm trying to peel the backing off the
sticker, rather than trying to peel the sticker off the
backing. I don't know why but it helps me.)

[1] gopher://sdf.org:70/1/users/tomasino/phlog/20180131-stickers