I had to submit my returns through Paper, its been 10 days, how do I know if IRS received and are processing it?
If you have mailed your tax return the IRS, you can start tracking it about 4 weeks after mailing your paper return.
You can track your refund via the IRS Where's my Refund site to see when it has been received and is being processed: https://www.irs.gov/refunds