<human>: Can you condense the text into three sentences or less?

A few months ago I [28F] got an apartment with my bother [25] in a new city away from home.  Normally we get along well, but my brother is a very manly man, conservative, old Testament, German, my-way-is-logical-and-therefore-correct, type.  And he's been getting increasingly overbearing. Everything I do with my life or around the house, he has a better way of doing, and will tell me so as though I'm his stupid employee who keeps screwing up.  

He has a job that has him traveling a lot, and he's usually not home for more than a week at a time.  So I've been letting everything slide.  But it's really getting out of hand.  

For instance, he'll buy food that *he* wants, then go away for work for like 2 weeks and get pissed that I don't eat all the stuff before it starts to go bad.  Or how he insists that we should use paper grocery bags for our trash, and gets upset when I forget to ask for paper bags when I buy food.  Or he'll tell me I can't go to my car until our kinda lewd neighbor goes back inside.

I've tried to convince him that humans are allowed to have other opinions than his, but no luck.  I have to figure out how to deal with this because we're not just roomies, we're family.  Does anyone know how to get through to someone who's convinced their way is the only way?
<bot>: Best ways to deal with a lil brother roomate who acts like he's my big brother/dad/employer/commanding officer?