You are not alone. The IRS Where's My Refund site (and some State tax sites) has been erratic and unreliable.
However, if TT told you your return was Accepted, then the IRS has it for processing. Once that happens, TT receives no further updates, and the IRS has been imploring taxpayers not to call. So please continue to be patients, as lots of folks are waiting. Also see:
Nearly 7 million tax returns haven't been processed by the IRS because of stimulus changes (msn.com)
