So I just realized that I made a HUGE mistake!!!! AHHHHHHH

I e-file i-765 and I didnt check the box which says I will be mailing supporting docs!!!! what should I do? Should I still send them my supporting document? PLEASE HELP!!! What should I do???

This is the I-751 forum, it's doubtful anyone here will be much familiar with your case.

Have you tried making an Infopass appointment to ask what you should do?

I-765 is the Employment Authorization form! And this is not the I751 forum. - read the top part - Working and Traveling etc. That said, generally they require the supporting documents for the EAD, so they may ask you for it. Did you submit this along with AOS? Perhaps they might photocopy what they need from that packet but I doubt it. I would suggest wait to hear from them. Good Luck

You ever heard of topics being MOVED????

I'd make an infopass appointment if I were you.