After you file

I can't access online or by mail bc of covid-19...I live in mass going insane i filed 2/4 was accepted idk if its bc I claimed my son for entire year he was born aug 18 so idk if I got tax credit in 19 for year 2018 but negative sign before amounts??? Tt152 refund amt still there got letter dated 3 16 and not to do anything I'm so sick of not having money