How do I continue Alissa's quest? I did all the steps it said but Cassie doesn't say anything about Alissa being useless
So you need her to find Work?
Go Outside the Safehouse and press "Seek" top Right Corner, you should find her banditing again. Sometimes if you gave the Enemy Version a Cock, that will appear before it activates the scene you want.
If you have done this, find Alissa, in the Safehouse and speak to her.
If you have done these then I don't know what comes next, it should be Cassie's, turn to Help by then. By telling her the Cold Hard Truth.