I was scheduled to get my tax return today now my WMR status says its going to be mailed?

Check the routing number that you used for your bank account. If you fat-fingered it and it's not a valid routing number the IRS will catch that and will send you a paper check in the mail automatically. (If you had mangled the account number or the routing number was valid, your refund would have been delayed an extra 4 to 6 weeks, so this is actually not all that bad of a problem.)