Mailed in paper returns will take at least 6 months to process or possibly much much longer. When you log into the IRS website on the where's my refund tool you do not need anything but the primary social security number, your filing status, and the exact amount of the refund.
If you choose to review your transcripts then you have to set up an account and go through the ID me process. Until you return has been entered into the system and fully processed you will not see anything in the transcripts so until the where's my refund shows the returning processing looking at the transcripts is a waste of time.
