Yeaaah, much shit from teachers calling me stupid and lazy or assuming that I'm stupid and lazy, the problem went ignored for years because they refused to test me for learning disabilities. I had an attitude problem AND was one of 'em Asian kids (so that meant I was supposed to be good at school), so clearly my issues with my work wasn't a disability, it was me acting up. I didn't officially get diagnosed until I was out of school. The woman the school had sent to test my younger brother for learning disabilities ask if she could test me as well after picking up on a few things when I was trying to do my work.
For me it's not so much the spelling that bugs me (though I am really bad at that and have to keep googling random badly spelt words because it can figure out what I'm trying to say better than the computer spellcheck) It's when I completely mix up the order of words in a sentence writing, or write incomplete sentences cause it will look find to me at first glace, but be missing a bunch of words all over the place or half the sentence is missing. Reading though is the absolute worse, I can't really read well because I read things out of order or read things as other words, and paragraphs that are too long or text that doesn't have spacing between paragraphs are just jumbled text, and are hard for me to get through.
Granted actually knowing I have dyslexic has helped me a lot when it comes to managing it. I can't say I've gotten better at spelling, reading or anything else, but I at least know what I have problems with or what to look out for. (though sometimes when I'm going back to edit something I read a correct sentence out of order, think it's work and 'fix' it but actually make it wrong. Then after handing it off to someone to edit I'll confuse the hell out of my poor editor cause what I wrote will be so messed up.) but yeah editors help a lot when you have dyslexia (even if it's just a friend and not someone with the official title of editor) so don't feel bad that you need to ask for help, heck writers who don't have dyslexia still need editors too.