New Email

I would just like toe find out how will I be able to reset gmail? Because I am using this email user: It doesn't matter where I go in it says that my password is incorrect? I didn't change my password nor the user.

A while back I took my phone in for a software upgrade and ever since I have been having trouble to loggin my email.

I am not sure how I will get an answer because my email isn't working?? Help please as I won't like toe get a new email adres.

Thanx marian