I can't write well at all, and don't think I'll ever be a good writer. Can I do anything to improve?
The key to writing well is to do it often - very often. Even if you aren't a born writer, you can still hone yourself to be a great one, it just takes time and the ability to sit down, write, and do it every single day. Even just a little helps, and you'll surprise yourself with the things you can create, even if you don't think you're the creative type.
Am I a loser for getting my GED instead of graduating?
I used to think this, and the answer is an emphatic no. Though often stigmatized as less valuable than a high school education, the GED is a fairly rigorous test and scoring high on it will look much better than scoring average on high school exams or maintaining a B grade through graduation. With the right preparation, the GED is a great measure of intelligence and practical knowledge without the years and hours of traditional classes behind it.
English/writing/reading is boring. Why do I have to learn it when I'm so disinterested?
The nuances to the subject of English are vast and unending. A familiar or typically 'boring' piece of literature might be seen in an entirely different light depending on how it is presented by the teacher, and you can almost always find some kind of magic in it, even if it's the most uninteresting subject to you. The value of being able to articulate concisely what you mean will serve you well in the future, and is something that can only be drawn from reading.