How to I hard reset my phone?

[AC Question]

Hey guys, so I have this lg l9 p760, i rooted it and since i was using a custom launcher and custom keyboard i had the great idea to uninstall the stock ones.. Now, my phone started beying slow so i decided so hard reset it. After the reset was done I realized it didn't reinstall my stock keyboard and stock launcher yet. Now I am stuck with the main screen asking me to put in the google account and since I don't have a keyboard I can't do that. How do i fix this?