Does it? I do, in fact, think a lot - often running myself into vicious circles of self-hatred and self-pity. I'm sure it's not a good thing, even though I can barely resist it at times. It doesn't sound like a lot of people going through this, either - some rough times, like you have sometimes, but nothing as severely self-down-putting as what I've felt when I was writing the post.That sounds fairly normal for a young person who thinks a lot.
Yeah, going into this spiral because you didn't exercise suggests to me, based on my age and experience, that you could use cognitive behavioral therapy to teach you not to hate yourself. But I also know that getting that sort of help doesn't happen unless a person is ready for it. Lots of people who ruminate do get a little help to get some perspective on how loathsome they aren't.