Grasshopper Trade with U.S. Steel

I own 400 shares of U.S. Steel. 200 shares at $28 and 200 shares at $27.25. I just sold 4 contracts of the 9/17/21 $28.00 Calls.

Sell to Open 4 X 9/17/21 $28.00 C @ 30¢ (+$120)

I would love to get assigned on this to get more funds liquid for my Day Trading venture,