>>1
"Seriously" is a fragment, and is also not capitalized. You forgot to capitalize "I," in the next sentence, and when quoting either speech within quotes or words with apostrophes, you use double quotes ("") to denote the differences between the actual quote and the apostrophe, rather than just single quotes (you should have typed "you're" instead of 'you're'). When stating location, in regards to the internet, you would use "on" rather than "in." Also, technically, the error involving replacing "your" with "you're" is not a spelling error and is a grammar error.
I'm not going to even bother dealing with the use of chatspeak in a sentence criticizing people for spelling errors.