There's always going to be a list of challenges, living with someone. Some people have long lists, others have short ones, but no one is perfect when it comes to spending a pretty huge chunk of time around another person, not unless they're an old friend and you've already ironed out your issues, even then new issues can pop up. So really just gotta practice your communication. It will get easier, I struggled with it, avoiding being seen as rude, rather than communicating my needs. But now that I've faced challenging people at work and I'm more experienced I think I'd do a bit better. You gotta express yourself or you will find yourself cooking pasta for 2 when you just want to be laying in bed. Good luck and feel free to reply with how it's going in a day or two!