How can I change consular processing of my immigration to a state-side interview if I do not have US relatives and have overstayed my visa?

I am being sponsored by a family for a work permit and a green card. I take care of their autistic child. I have the work authorization from the US Labor Dept based on which I applied for an immigrant visa. I came here on a J1 with no requirement to leave after w years - which I changed to F1 which says duration of status but no date of departure is noted on it. I am afraid to leave so as NOT to trigger the 10 year ban. What can I do? Thanks for your help.