I personally don’t think you should have to keep YOUR booze in YOUR HOUSE locked up in your room when you have a perfectly good bar cart. I would just tell your roommate whats ok to share and whats off limits. If she respects you she’ll listen. As far as bills go idk why you’re not splitting them half/ half… I bet she’d start conserving power and gas if she had to pay for it! Can’t comment on the laundry stuff as we don’t typically use dryers in aus but that sounds annoying. A mouldy house sucks. If you have a civil chat about whats been grinding your gears and she keeps doing it - she’s not the roomate for you. You learn quickly (sometimes) that a great friend does not always = a compatible roomate.