When Will I get 'my Tax-Return?'

Hello:

I am an elderly lady and a widow live in MD. 

I filed/mailed my '1040-SR' Tax-Return  on February 18, 2020.

When I checked on its status, it keeps saying, ....

..... received and in process .....

However, this, the exact same message has been popping up  over a month without any progress to see.

When will I get my tax-return?

Thanks for your help in advance.