did wrong forms in 2006. OPT F-1 1099 MISC
Hi, I am really confused and need help. I was a F-1 visa student on OPT in 2006 (in California for six months) and did tax return in Feb, 2007. I was a contractor and got a 1099-MISC for $8000 income. I already filed 1040, 1040-V, Sch C, Sch SE, 4562, 8829, 8867 and paid $800. However, I found that I should have filed 1040NR, Form 8843, Form 843, Form 8316, (and more?) instead of those files as a F1 on OPT.
My question is:
(1) Do I need to tell IRS those wrong files and resubmit the new ones?
(2) I researched online that I can fix my tax return by submitting Form 1040X. Is it appropriate my situation?
(3) If I resubmit the new files, will the amount of tax change? (Do I have to pay more or less?)
I have been researching for hours but not really got a good answer yet. Please help me out...
Thank you.