What To Do 🤦🏽‍♀️🙃

Okay guys so I need some help with this situation, My husbands sister is living with us & I am BEYOND ready for her to go. problem is she has no job, no nothing. she was living in California with her dad , but their mother passed away in January and she came back and decided to stay....she had nowhere to go so she decided to live with us. we have a 3 bedroom home, with 3 children who now all have to share a room & a baby on the way as well. we are only 24 but we both graduated college and have careers, she is 32 with nothing we pay all the bills and buy all the food for our family. she stays up all times of night and sleeps in all day, then complains about our children playing, or being loud when she’s trying to sleep. it’s so annoying, she is constantly trying to REDECORATE things I’ve already done in my house like setting up new pictures putting up new things without even asking if it’s okay. I know it’s terrible about what happened to his mother but she’s been this way for years she lived with her mom for years until she just moved to Cali. she isn’t seeming to be looking for a job either, just sits around all day and smokes oustide on my back patio. She is always budding into our conversations, she even told my sister that me and my husband spend too much time together & that he never takes her out, like to the movies or out to eat or anything.....and lastly she is always trying to criticize what we do as parents when she has no children, I wouldn’t let her care for a dog to be honest. it’s getting to the point where I feel like she is purposely trying to come between us. I just really want my house back to myself. and to do things the way I want in my own home. I hate feeling uncomfortable in my own house it’s just getting stressful at this point now. what should I do ?

Thank You Guys For The Advice 🙌🏽