"Locked" out of my verizon droid eris. Help me?

I really loved my droid eris, then i got "locked" out of it. I put a code on it and someone tried to get into it and to get back into my phone i need to provide a gmail username and password..i dont remember my gmail and password. I have tried just about all i could think of. Any ideas on what i can do to get back into my lovely phone? All answers help!! Thank yaaa!