I don't understand your situation. If you entered illegally, how can you overstay your visa? If you entered illegally, presumably you didn't have a visa. But c

I don't understand your situation. If you entered illegally, how can you overstay your visa? If you entered illegally, presumably you didn't have a visa. But clearly this is something you should talk to a good lawyer about. If your current one isn't helpful, find a new one.