Robinhood Withdraw Issue.

Hey reddit! I'm coming on here as a new investor wondering how I can cash out on robin hood. I have sold my stock and am satisfied enough to cash out but wouldn't you know it I cant. I don't know if it's because my sell order hasn't fully processed but I digress. I went to go and withdraw and it wouldn't let me with the sell order I just placed. Is there something i'm doing wrong? Because I got $12 through but the rest is just in my account. Any tips please feel free to let me know!!! submitted