I feel like I’ve lost my identity. My roommate copies everything I do. From the groceries I buy, to the music I listen to, exact garments/shoes, brands I wear, etc Help.

Sounds more like he’s lost his

Be honored. Help him/her cuz obviously u have influence. Encourage and mentor. This is an opportunity

Ac1 unless the roommate is going to kill OP after the transition is complete

What a weird complaint

Spend 10K on a Rolex and see what they do. Then return it

Whatever you do, do not watch the 1992 movie "The Hand That Rocks the Cradle"

What if you have no roommate. You know... fight club kinda thing. I would see a professional

Another more evil idea is to fake do something crazy like get a really big trashy tattoo, wait for her to copy it, then be like “oh wow can’t believe you actually did that! I just had mine as a joke, it was a just a temporary tattoo!”

Your roommate sounds like a great client

I can't believe no one has referenced "Single White Female" yet.

Imitation is the sincerest form of flattery

“A Beautiful Mind”

Hahaha this is my life too! Roommate is super clingy and annoying and copies me with everything to my lunch box, winter boots, she even bought a diva cup when she saw I bought one ffs. She thinks we are bffs.

What has worked for me: Information diet. The less she knows about you the less she can copy. Spend as much time out of the apartment as possible so she hopefully finds someone else to obsess over. Take a few days to respond to texts or don’t respond at all. Don’t make plans with her and don’t accept her invitations to hang out. When she asks about your plans be as vague as possible. “It’s a work thing” is my go-to so she doesn’t try to invite herself. Become as boring as possible so she has nothing to latch onto. Google grey rock for techniques. Good luck!

Seriously find something more substantive to be your identity. Character is Indelible

You read my mind and beat me to the punch A4

Does your roommate look like Matt Damon?

A4, I think that's actually what I meant when I said "The Hand That Rocks the Cradle!"

Read codependent no more. Then you’ll move out