Unable to access/add my gmail account after changing my password from my phone.

I am running on Yosemite, I changed the password to my gmail account from my phone. Shortly after I realized that Mac Mail would not allow me to send or receive messages. I keep getting a prompt to update the password for this account. I deleted the gmail account off of my mac mail, and tried to add it again later in order to circumvent the problem. It did not work, as I now cannot add my gmail account back on. I cannot get to the screen to add the password the dialog box just continues to buffer. I also tried to add the account using the other mailbox option. This yielded the same results.