mongo what is your problem? If you don't want to deal with an 8th grader on the forums, then don't reply. People like you drive me crazy. You say this kid is fishing for compliments, but it is like you are fishing the internet for someone to insult. Just relax and if you are going to reply give the kid an answer not a stupid remark.
To answer your question, you're pretty good for middle school. In my league you would probably be in the top 5 for 8th graders for the 4 and the 8 and maybe a little lower for the mile. You have potential if you work hard to run fast in high school. For now just have fun in middle school. In high school there will be more competition at meets. Even if your school/league isn't great there will be championships at the end of the year where you will definitely be pushed.